Allergy Symptoms worst at night? GP-approved tips that can help

Summary: Nighttime allergies can worsen due to factors like dust mites, pet dander, pollen, and sleep position. Symptoms include sneezing, congestion, itchy eyes, and coughing, often disrupting sleep. Common allergens include dust, mould, pet dander, and cockroach droppings. Preventive measures like cleaning bedding, using air purifiers, and showering before bed can help. Allergies can also contribute to sleep apnoea, making breathing difficulties worse. Online doctors are available 24/7 to provide medical advice, prescriptions, and referrals for allergy management.

If you have ever struggled to sleep at night due to nasal congestion or itchy eyes, it’s not just your imagination—your allergy symptoms can intensify as the night sets in. Whether it’s pollen sneaking in through the window or dust mites taking refuge in your sheets, nighttime allergies can make winding down for bed feel like a challenge. But here is the good news: there are simple, doctor-recommended tips that can help manage these annoying symptoms, so you can finally get the rest you deserve. 

Why do my allergies get so bad at night?

Several factors may worsen allergy symptoms at night, including:  

• Sleeping position: Lying down increases congestion and can cause mucus to accumulate in your nasal passages and sinuses, intensifying post-nasal drip during sleep. 
• Indoor allergens: Dust mites, pet dander, and mould are more prevalent in your home, especially in your bedroom, and you are exposed to them when you are lying down for hours. 
• Pollen levels: Pollen tends to be more abundant in the late afternoon and early evening, and if you have been outside, it can cling to your clothes and hair, making symptoms worse at night. 
• Humidifiers: Many individuals with allergic reactions may find humidifiers useful for dry sinuses. However, they may enhance airborne particles. Moreover, mould can grow in humidifier filters if they are not replaced frequently. 
• Circadian rhythms: The body’s internal clock plays a crucial role. These innate timekeepers influence several bodily functions, including the immune system’s reaction to irritants. Allergy symptoms may aggravate at night because of these natural changes in the immune response. 

Summary: Allergy symptoms worsen at night due to sleeping position, indoor allergens, pollen exposure, humidifiers, and natural circadian rhythms affecting immune responses.

Allergies at night: Symptoms

Common nighttime allergy symptoms include: 

• Sneezing
• Itchy throat
• Runny or stuffy nose
• Coughing
• Wheezing or shortness of breath
• Watery eyes
• Fatigue

If these symptoms persist or are severe it’s best to consult a healthcare professional for proper treatment and care.  

Types of allergies that get worse at night

Several types of allergies intensify at night, mainly due to increased exposure to indoor allergens or environmental changes. These include:  

• Dust mite allergies: Dust mites thrive in pillows, mattresses, and rugs, leading to increased exposure at night when you are in close contact with them while sleeping.
• Mould allergies: Mould spores are commonly found in humid spaces such as bathrooms and basements. As the temperature drops in the evening, these spores may become more prominent, worsening allergy symptoms. 
• Pollen allergies: Though pollen counts usually peak during the day, pollen that attaches to your clothing, hair, or the outdoor air can trigger symptoms at night if you have been outside. 
• Pet dander allergies: Pet dander can gather on your mattress, pillows, and clothes, causing intensified symptoms like sneezing and nasal congestion while you rest. 
• Indoor air pollution: Pollutants like dust, tobacco smoke, or chemicals from cleaning agents can increase at night when windows are closed, and air circulation is minimal.
• Cockroach allergies: Cockroaches become more active in the evening, and their waste and body fragments can irritate the respiratory system, causing coughing, sneezing, and wheezing. 

Common nighttime allergens and what to do

Common nighttime allergens include:  

1. Dust mites:

These little organisms thrive in hot, humid environments, especially in bedding, mattresses, and carpets.  

What to do:

• Cover your pillows and mattresses with dust-mite-resistant covers.
• Wash your linens in extra-hot water to eliminate any remaining mites.
• Change and clean your bedding every week.

2. Pet dander:

Dander from pets can accumulate on bedding, furniture, and garments, causing allergic reactions at night.  

What to do:

• After spending time with your pet, change your clothes and launder the clothes you wore during your time with your pet.
• Avoid allowing pets in the bedroom and bathe them regularly. 
• Clean your living space regularly, especially fabrics and floors, to reduce dander buildup. 

3. Pollen:

Pollen can cling to your garments and hair, and when brought indoors, it can lead to allergy flare-ups at night. 

What to do:

• If you have spent time outside, shower before sleeping and change clothes to remove pollen.
• Keep windows shut during peak pollen seasons and use air purifiers inside.

4. Cockroach droppings:

Cockroaches become more active in the dark and their waste can trigger allergic reactions. 

What to do:

• Keep your house neat, seal all openings, and minimise food scraps that attract cockroaches. 
• Fix any water drips that could lure the cockroaches.

5. Mould:

Mould spores multiply at night, especially in humid spaces like bathrooms, kitchens, and basements. 

What to do:

• Use a dehumidifier, fix leaks, and clean mould-prone areas. 
• Ensure good ventilation in your home.

Also read: Can seasonal allergies make you feel sick?

How to prevent allergy symptoms at night?

Allergy symptoms can disrupt sleep, but there are simple ways to minimise nighttime triggers. By making a few changes to your environment and routine, you can reduce the severity of allergies at night: 

1. Maintain an allergen-free bedroom: Regularly clean your bedroom to eliminate allergens such as dust mites, pet hair, and mould. Wash your linens, including pillowcases, sheets, and blankets, in hot water every week. Use allergen-proof encasements for pillows and mattresses to deter dust mites.
2. Utilise an air purifier: Purchase a HEPA air purifier to decrease airborne allergens in your bedroom. This device helps filter out dust, pollen, pet hair, and other irritants that may provoke nighttime allergies.
3. Keep windows shut: To stop pollen and outdoor allergens from coming in, keep windows closed, particularly during peak pollen seasons or at night.
4. Control humidity levels: Utilise a dehumidifier to limit mould growth and decrease the presence of dust mites. Keep humidity levels between 30% and 50% to deter these allergens.
5. Shower before sleeping: Taking a shower before bed can remove any allergens, such as pollen or pet dander, that you might have collected throughout the day. This minimises the risk of allergens transferring to your bedding.
6. Consider an antihistamine: Think about taking a non-drowsy antihistamine before bedtime to help prevent nighttime allergy symptoms. This can alleviate congestion, sneezing, and itching during sleep.
7. Restrict pets from the bedroom: If you're allergic to pets, keep them out of your bedroom and off your bed to reduce exposure to pet dander.
8. Raise your head while sleeping: Sleeping with your head elevated can help avoid nasal congestion and post-nasal drip, making it easier to breathe through the night.

Also read: Can seasonal allergies make you feel sick?

Allergies and sleep apnoea

Allergies and sleep apnoea are related as both conditions may result in interrupted sleep and breathing difficulties during the night. Here’s how they are connected: 

1. The impact of allergies on sleep apnoea: Allergy symptoms, including nasal blockage, sinus discomfort, and inflammation of the airways, can hinder your ability to breathe through your nose. This can increase the chances of snoring and interrupted breathing, which are typical in sleep apnoea. Moreover, allergies can intensify sleep apnoea symptoms by heightening airway obstruction.
2. The effect of sleep apnoea on allergy symptoms: On the other hand, sleep apnoea can aggravate allergy symptoms as well. The frequent breathing interruptions associated with sleep apnoea can diminish overall sleep quality, making the body less capable of defending against allergens. This might result in more intense allergic reactions and congestion.

Summary: Allergies can worsen sleep apnoea by increasing nasal congestion, while sleep apnoea may exacerbate allergy symptoms by disrupting sleep quality.

When to talk with your doctor about allergies

You should discuss your allergies with your doctor if your symptoms are ongoing, worsen with time, or disrupt your daily life. If over-the-counter medications are ineffective, or if you suffer from severe reactions such as breathing difficulties, swelling, or anaphylaxis, seek urgent medical assistance. It is also essential to speak with a doctor if you find it hard to pinpoint specific allergens or if symptoms persist throughout the year. Your doctor can assist in identifying the source of your allergies and suggest treatments such as allergy testing, prescription medications, or immunotherapy for long-term relief. 

Can night doctors online help?

Yes, online doctors  available at night can assist with allergies by offering advice on managing symptoms, suggesting over-the-counter or prescription medications, and informing when to seek in-person medical attention. They can evaluate your symptoms, recommend home remedies, and even prescribe allergy treatments if required. While virtual consultations are convenient for non-urgent cases, you should seek immediate in-person care if you experience severe allergic reactions, such as trouble breathing or swelling. Online doctors provide a valuable option for addressing allergies outside typical office hours.    

Hola Health’s 24/7 telehealth service provides a convenient way to manage allergy symptoms anytime of the day or night: 

• Night doctor consultation: Connect with a doctor 24/7 for an assessment of your symptoms and tailored treatment advice.
• After hours scripts: Receive escripts for covid oral antivirals or other medications instantly, ready for local pharmacy pickup or same day delivery.
• Dr referrals: If further care is needed, your doctor can provide specialist referrals.
• After hours medical certificate: Easily obtain a medical certificate if the seasonal allergies impact your ability to work or study. 

 

FAQs

How can I calm my allergies down at night?

To alleviate nighttime allergy symptoms, consider using an air purifier, keeping your windows shut, and regularly washing your bed linens to eliminate allergens. Taking an antihistamine before sleep and applying a saline nasal spray can help clear your nasal passages. A humidifier may introduce moisture into the air, reducing dryness that can worsen symptoms. 

What is triggering my allergies at night?

Typical triggers for nighttime allergies include dust mites in bedding, pet dander, mold, and pollen. Environmental allergens that build up during the day may escalate at night, especially when you're closely interacting with your bedding or indoor atmosphere. 

Why does histamine release at night?

Histamine levels vary naturally throughout the day, generally peaking at night, possibly due to circadian rhythms. Since histamine is essential for the immune response, its release can lead to allergy symptoms like congestion, sneezing, and itching, which may become more pronounced at night during rest. 

What is the best position to sleep in with allergies?

Elevating your head while sleeping can help minimise nasal congestion and prevent mucus accumulation. Sleeping on your side may relieve pressure on your sinuses while lying on your back with an elevated head can enhance airflow and lessen post-nasal drip. 

Can allergies make you tired?

Certainly, allergies can result in tiredness. The immune response triggered by allergens can cause symptoms such as nasal congestion and breathing issues, interrupting sleep. Additionally, antihistamines used for relief may induce drowsiness, contributing to fatigue during the day. 

Why is my nose so itchy at night?

Itchy noses at night are frequently associated with allergens like dust mites, pet dander, or mold. These allergens are commonly found in your bedding or the air of your bedroom, causing irritation and provoking an allergic reaction that includes itching. 

What causes sudden allergic reactions at night?

Unexpected allergic reactions during the night can result from bedroom allergens such as dust mites, mold, pet dander, or pollen. Changes in the environment, like fluctuations in temperature or humidity, can also heighten the potency of allergens, resulting in an immediate allergic response. 

Why are my allergies so bad in the morning?

Allergy symptoms can be particularly intense in the morning due to overnight exposure to allergens like dust mites or pet dander in your bedding. Throughout the night, these allergens accumulate and can lead to symptoms such as sneezing, congestion, and itchy eyes when you arise. 

Can allergies cause insomnia?

Yes, allergies can cause insomnia by obstructing your ability to breathe easily during the night, leading to disrupted sleep. Symptoms like nasal congestion, coughing, and itching can hinder your ability to fall or stay asleep, resulting in poor rest and fatigue. 

To sum up, while allergies may try to disrupt your nights, you don’t have to let them win! By making a few easy adjustments, like keeping your surroundings free from allergens, and using the right medications, you can overcome those nighttime symptoms. Say goodbye to tossing and turning and welcome sweet, uninterrupted sleep!