Hi, I am 27 years old man. A week ago I had sudden rash and itch all over my body. Next day I started taking Zyrtec. Itch stopped but rash still continued to appear and disappear especially on my neck, arms, and hands. It appears mostly when I finish my shower even though I don't use hot water in shower. I did blood test days ago, I have ALT = 51 which is over the limit (46). Months ago my ALT was 26. I stopped using Zyrtec, and my doctor told me to use Atarax. However, its been a week and the rash is still the same. I am very worried about it. What shall I do?