The treatment of small bumps on the arms is as follows: 1. Red bumps on the arms are considered to be allergic dermatitis and eczema, and can be coated with urea ointment and Sanjiu dermatitis ointment, and during the treatment period, pay attention to the diet of spicy, seafood and hypersensitive irritating food should not be eaten. 2. The color of the bumps on the arms is close to the color of normal skin, and the parts of the bumps are rough and have no sweat hair. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things.