Itchy skin

[Emmaelle]

I have been having like spots that are very itchy.  The skin around them is red and the itch is intense.  They are different size and the biggest is about 2 cm wide.  They started to appear on the legs then the forearms, the elbows and now on my back.  I have them on the same part of the body.  Meaning I have some on the inside of  my left and right calves for example.  Same on the outside of my left and right thighs.  After a hot bath they weep.  I have been given antihistamine (fexofenadine) to no avail and creams are a temporary relief.  I had a blood test to check the thyroid and the liver and the results did not show anything bad. I don't eat wheat or gluten.  I avoid food causing allergy cause during several years I was suffering from dermographism. I used to have eczema when I was a kid and in my teen age but nothing like this.  I do my best not to scratch cause if I start I know I won't stop as the itch is so intense scratching does not bring any relief.  Thanks for shedding some light if you can.