My doctor was looking for what caused my urticaria but my blood work said i had mycoplasma.?? but i itch badly in heat. i need serious help.

? Cholinergic: urticaria, or other form of urticaria, better be sorted out by your doctor who might refer you, meanwhile you need to take antihistamines on regular basis whether you have symptoms or not, caution not to drive if you get sedated, your doctor might start you on cyproheptadine, an antihistaminic used to treat cholinergic urticaria, if you truly have it, take care