Red rashes all over the body may indicate an allergic reaction. Cetirizine and Avil 0.25 can help reduce itching and redness, but they may cause drowsiness. If the rash is severe, spreading fast, or associated with swelling or breathing trouble, inform a doctor immediately.

You may take an over-the-counter antihistamine and apply a fragrance-free emollient or calamine lotion to relieve the itching. Avoid scratching and use mild, gentle soaps to protect your skin. If the itching is persistent, severe, or accompanied by a rash, swelling, or other unusual symptoms, please consult your doctor to rule out any underlying medical condition.

You should consult a dermatologist to determine the cause, as white rashes with black dots may indicate a fungal or other skin infection. Avoid scratching, keep the affected area clean and dry, and use a mild, fragrance-free moisturiser until you are evaluated.

For black patches on your leg, please see a doctor or dermatologist to determine whether they are due to skin inflammation or a separate circulatory issue. For watery eyes, you may use over-the-counter antihistamine eye drops or tablets, avoid triggers such as dust or pollen, and apply a cool compress to relieve allergic irritation.