Hi, You seem to have developed an allergic reaction to the use of the bleaching agent. You should avoid using the same in the future. You should avoid applying any kind of skin irritants like dettol, spirit over it. You might need to apply a topical steroid cream over the affected area twice a day for few days. Take some oral antihistamines along. See a nearby dermatologist if the condition tends to persist despite this therapy. You might need a course of oral steroids or oral antibiotics according to the skin condition. Hope it helps, Dr Geetika Paul. MD(Dermatology)