I have red bumps mostly on my arms that are very itchy especially at night but I don't know if that is because i think about it in bed and get more itchy. I have had this for over two weeks now. Mainly on my lower arms. I went to my doctor who thought it may be an allergic reaction to something in the air since its mainly on lower arms which are the areas of skin I usually have exposed. Doctor gave me prednisone and cortizone cream. Prednisone made it not itch but still visible. Now I have been off medicine for almost a week and rash/bumps look just as bad and still itch sometimes. Mainly on hands and lower arms but some on back, knees, back of neck, and pubic area too. I think when I get nervous it gets worse.