i have been having skin irratations for about a year now. It has only just started getting painful. It normally reacts with heat or if i get embarresed. It used to come out just as a rash and stung a little bit. Now it comes up in little red spot ,Or somtimes it comes up in things like heat lumps all over my arms legs back and chest mostly my wrists and it is really painfull, it's like a sunburn. My doctor just thinks it's a allergic reaction but i have done some reasearch and up to now i think its Dermatitis if theres anyone else who has had this condition please tell me.