Red spots on skin: causes & when to worry?
Written by Dr Gosagan Gopalakrishnan, BSc (Hons), MBChB, DRCOG, MRCGP, FRACGP
Contents
Why do I suddenly have red spots on my skin? Causes of red spots on the skin
There are numerous reasons why red spots might suddenly appear on your skin. Here are some of the most common causes:Allergic reactions:
If your skin comes into contact with an allergen—such as certain soaps, detergents, or plants—it may trigger red spots, often accompanied by itching. This reaction, known as contact dermatitis, usually resolves once the irritant is removed.Heat rash:
Occurs when sweat ducts become blocked, especially in hot, humid weather. This can cause red or pink spots and a prickly sensation, often found in skin folds or areas covered by clothing.Petechiae:
These are small red or purple spots that occur when tiny blood vessels break beneath the skin. Petechiae don’t fade when pressed, and they can be a sign of an underlying issue, particularly if they appear suddenly in clusters.Keratosis pilaris:
Sometimes referred to as ‘chicken skin,’ this condition causes tiny, rough red or white bumps, often on the upper arms, thighs, or cheeks. It’s usually harmless and related to a build-up of keratin, a skin protein.Acne and rosacea:
Acne can result in red, inflamed spots, while rosacea is a chronic condition that causes redness and visible blood vessels, primarily on the face.Infections:
Viral infections, such as measles or rubella, and bacterial infections, like impetigo, can cause red rashes. Fungal infections like ringworm also result in circular red spots.Autoimmune conditions:
Skin conditions such as lupus and psoriasis may cause red patches due to immune system activity. These can be accompanied by other symptoms, including joint pain or fatigue.Vascular issues:
Conditions affecting blood vessels, such as purpura, can lead to red or purple spots that do not blanch when pressed. In some cases, these may indicate an issue with blood clotting or circulation. Also read: Regular skin checks for Aussies: A lifesaving habitConsult an Online Doctor in 15 mins
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Home remedies for red spots
While some red spots require medical attention, many can be managed with simple home remedies:- Cold compress: Applying a cold compress can help reduce redness and inflammation, especially for conditions like heat rash or insect bites.
- Oatmeal baths: Oatmeal has anti-inflammatory properties that may help soothe itchy, red skin caused by allergies, eczema, or rashes. Simply add colloidal oatmeal to warm bath water and soak for 15–20 minutes.
- Moisturise regularly: Hydrating the skin with a gentle moisturiser helps to relieve dryness and irritation, especially in conditions like eczema, psoriasis or keratosis pilaris.
- Aloe vera gel: Known for its soothing properties, aloe vera can relieve itching and inflammation from minor burns, rashes, or acne.
- Avoid known irritants: If you suspect your red spots are caused by an allergy, try to identify and avoid the trigger, which could be anything from certain fabrics to personal care products.
When should I be worried about red spots on my body?
In most cases, red spots are harmless and will disappear with time or basic care. However, certain symptoms may indicate a more serious underlying issue, and it’s important to consult a healthcare professional if you notice any of the following:- Sudden appearance: If red spots appear suddenly and are widespread, it could signal an allergic reaction, infection, or another systemic issue. Petechiae, for instance, can be a sign of a blood clotting disorder or a serious infection.
- Spots that don’t fade: Red spots like petechiae or purpura do not blanch (turn white) when pressed, which may indicate issues with blood vessels, clotting or signify an infection.
- Painful or itchy spots: While mild irritation is normal, intense pain, swelling, or itchiness may suggest an infection, especially if accompanied by pus, fluid, or warmth.
- Accompanying symptoms: If you experience fever, fatigue, joint pain, or other symptoms along with red spots, it could indicate an infection, autoimmune condition, or other systemic illness.
- Persistent or changing spots: Spots that last several weeks or change in appearance, colour, or size warrant a check-up to rule out skin conditions or even early signs of skin cancer.
Can telehealth help?
Telehealth provides a convenient, accessible way to discuss your skin concerns with a healthcare professional. Through a virtual consultation, a doctor can help determine the cause of your red spots, recommend suitable treatments, and advise on whether further testing is necessary. This can save you time and provide peace of mind, especially for mild symptoms or recurring skin issues.How can Hola’s online doctor help with red spots on the skin?
Hola Health’s online doctor service offers a convenient, supportive approach to managing skin concerns. Through Hola Health’s telehealth platform, you can benefit from:Telehealth appointment:
Connect with a doctor for an immediate assessment of your skin symptoms, from rashes to unexplained spots. Your online doctor can provide expert advice on next steps and treatment options.Instant scripts online:
If treatment is needed, such as antihistamines, topical creams, or antibiotics, your doctor can provide prescriptions electronically, available for collection at a local pharmacy or through an online service with delivery options.Doctor’s online referrals:
If your doctor suspects an underlying condition requiring specialist care, they can issue a referral and guide you on follow-up options.Medical certificates online:
If a skin condition requires you to take time off work or manage symptoms at home, Hola’s online doctor service can provide a medical certificate for your needs. For peace of mind and professional support, Hola Health’s telehealth service offers an efficient way to understand and manage unexpected skin changes. Book an online consult today to get advice, reassurance, and the care you need.Get Instant Scripts Online in 15 mins
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This content is created for informational purposes only. It is not intended to be a substitute for professional medical advice. Always seek the guidance of your doctor or other qualified health professional with any questions you may have regarding your health or a medical condition. For emergencies please immediately contact 000.
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For urgent medical help & in case of emergency,
call 000.
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