<s>[INST] Hi, I am getting small bumps under the skin that are extremely itchy. They have no color but they are on the back of my hands, the inside of my forearms and the area of the lower arm just above the elbow. the itch is almost unbearable. This has been going on for over a week. It bumps seem to get bigger and multiply if/when I scratch them. Thanks!...deb [/INST] Hi,From history it seems that you might be having some allergic rashes.As rashes are only on hand and upper arm, there is likely of having handling some chemicals or some stuff causing allergy.Take antihistamine like Cetrizine or Benadryl for 2-3 days.Apply some zinc-calamine lotion on the part.Ok and take care. </s>