For red rashes from mosquito bites, you can apply an over-the-counter 1% hydrocortisone cream or calamine lotion to the affected area 2 to 3 times daily to reduce itching and redness. Applying a cold compress for 10 minutes can also provide immediate relief. If the itching is severe or keeping you awake, an oral over-the-counter antihistamine like cetirizine or loratadine can help. Avoid scratching the area to prevent a secondary skin infection. If the rash spreads, becomes increasingly painful, warm to the touch, or oozes pus, please see a doctor immediately.

Red, dot-like rashes on the elbows and behind the knees that are spreading are often seen in conditions like eczema (atopic dermatitis) or certain types of dermatitis, rather than just a simple sand allergy, especially when they persist without exposure. Treatment usually involves keeping the skin well moisturised with a gentle, fragrance-free cream, avoiding harsh soaps and irritants, and using prescribed anti-inflammatory creams (if advised by a doctor) to reduce redness and itching, while also wearing soft cotton clothing and keeping the skin cool and dry. Since the rash is spreading, it is important to consult a dermatologist for an accurate diagnosis and the right treatment plan, as early and proper management can prevent worsening and provide relief.

Widespread itchy rashes with pimple-like spots and swelling can be caused by several conditions, most commonly an allergic reaction, heat rash, a fungal or bacterial skin infection, or a condition like Urticaria, especially if the itching is intense and the rash comes and goes. Involvement of areas like the underarms suggests that sweat, friction, or infection may be contributing. Scratching can worsen the rash and lead to marks or secondary infection. It is important to keep the skin clean and dry, avoid tight clothing and new soaps or products, and try not to scratch. You should see a doctor for a proper diagnosis, as treatment may include antihistamines, antifungal or antibiotic medicines depending on the cause. Seek urgent care if you develop swelling of the face or lips, breathing difficulty, or fever, as these may indicate a more serious reaction.

Red, circular, itchy patches on the skin are commonly seen in fungal infections like ringworm, but similar-looking rashes can also happen due to eczema, allergy, or other skin conditions. Fungal rashes are often round, itchy, slightly scaly, and may spread slowly over time. Keeping the affected area clean and dry is important. Avoid scratching, sharing towels, or using very oily creams, as moisture and irritation can worsen the rash. Wear loose cotton clothing and change sweaty clothes quickly, especially in hot weather. A doctor may suggest an antifungal cream if it is truly a fungal infection, but the correct treatment depends on the exact cause of the rash. Medicines/treatment should be taken only if advised or prescribed by your doctor. Avoid using steroid-containing creams on your own, because they can sometimes worsen fungal infections and make diagnosis difficult. Please see a dermatologist if the patches spread rapidly, ooze fluid, become painful, affect the face or scalp, or do not improve within 1-2 weeks.