I have what I think is hives, small red itchy bumps after I shower/bathe, at night, stressed, heat for 5 years the itching on my legs has got worse lately to the point I bleed! I will wake up in the night scratching and once I start I can't stop and it spreads. I have tried soooo many creams, antihistamines! The doctor believes it's stress related he did blood test only to come back with high levels of histamine! I hate it please help