Hi Welcome to Healthcare Magic Forum Looks like you have developed a lesion of allergic dermatitis. You need to apply an antibiotic/steroid combination cream over the lesion twice a day. Take oral antihistamine like levocetrizine once a day to decrease the swelling. Do not use any moisturizer or oils till the time the lesion heals . If the lesions continue to increase inspite of the above treatment, then you might have to see a dermatologist as in severe cases, short term courses of oral antibiotics or oral steroids may be required. Antihistamines like banadryl can be safely used along with the drugs that you are taking. Hope it helps Wishing you speedy recovery Dr Geetika Paul