What causes a skin rash and/or bite to itch?

Inflammation. The body reacts the injury and causes white blood cells to counteract the injury to repair the area. As part of the process small nerve fibers are irritated resulting in a sensation of itching.

Related Questions

My 4 Y/o daughter has a skin rash after being bit by mosquito, but the rash is all over her hands & legs and it itches.

Poss. allergic... It could be an overt allergic reaction to the bite especially if it is hive like. There are many other causes for it too, but the rash has to be seen by a doctor to assess it. Benadryl (diphenhydramine) may help if allergic, but please have it seen. Read more...

I have a rash all over if you rub on it you can feel a bumps under the skin. It itches what can this be?

??Hives?? Sounds like hives with possibly some angioedema (swelling within the dermis). Also known as urticaria. Try a simple antihistamine to see if this helps, if not, you should have someone look at the rash since this isn't the place to diagnose a rash. Needs to be visualized. Read more...

Skin itches and rashes form in some locations. Only happens in the summer, this is the 2nd year. Rash occurs on exposed and non-exposed skin.

Fungal likely. Usually occur in groin, armpits, under breasts, but occur anywhere where u sweat more. Fungus are notorious for reappearing during summer time as they like moist conditions. Key is to keep the areas as dry as possible. Antifungal and steroid creams are the usual treatment. A dermatologist can help. Read more...