hi, i have started to get this wierd reaction around my lips, its very itchy red and tingly, i am not sure what it is. my doctor has given benadryl ointment, but it doesnt work, i never had this problem before but it just started 2months ago first time, it went away and i have it again now. dont know whats causing it, i dont have any allergies that i know of. please help. thank you