prickly skin

[cillamolly]

i have very itchy skin when it comes into contact with heat including bath water, i get a feeling of pins and needles and it affects my hands arms and chest, my chest has a rash where i keep scratching, i saw my gp 2 weeks ago who said i have roseca because my face was red and itching (t zone). last year i was in hospital for 4 weeks after having surgery to remove some of my bowel (i have crohn's) and i had peritinitius was very ill and was in intensive care.
when i was eventually able to have a bath i experienced the burning prickly itch that was last year (i had no bath products in bath). this year ifelt the same sensation during the windy weather (i live by the sea) and last week when it was warm and sunny it came back and i also got burnt with a 25 factor sun screen (i was not sunbathing). can you tell me what it it as its driving me mad.
many thanks

[cillamolly]

Thank you so much for your comments, i am waiting for blood test results now i think i am having a mot of everything so should know in couple of weeks.

[Bhupinder Kaur, MD]

Hello,
From the symptoms it looks like cholinergic urticaria or atopic dermatitis to me. It  is a form of chronic hives that is caused by an increase in body temperature. Take some antihistaminic like Benadryl or Claritin and apply some calamine lotion on the hives. If the symptoms persist then please get it examined from a dermatologist.

It is essential to rule out the presence of serious illnesses of which recurring hives can be a symptom. Examples are hepatitis, hyperthyroidism, lymphomas, collagen vascular diseases, and cancers of the rectum, kidneys and gastrointestinal tract.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.

[cillamolly]

Thank you for your reply, just got back from my GP and i am having blood tests done to test for lupus and b12, also perscribed antihistamine.
thanks again.