Hi, You seem to have developed an urticarial skin reaction. It can be due to any oral antibiotics that you are on. Even any new topically used agent can be the cause. You need to stop using any possible offenders immediately. Take oral antihistamines to relieve the itching and to reverse the allergic skin response. You can use topical calamine lotion for symptomatic relief. If inspite of above measures, the rash persists or increases, then you might need treatment in the form of oral steroids. You should see a nearby dermatologist in that case. Hope it helps, Dr Geetika Paul