There are small pimples on my arms. They itch.

There are small bumps on the arm very itchy, this situation is likely to be caused by contact with certain substances or eating certain foods, causing allergies. At this time, you should first find the allergen and remove it, and prevent re-contact. When treating, you should choose to take diphenhydramine, chlorpheniramine, promethazine, cyproheptadine and other anti-allergic drugs for treatment. At the same time, during the allergy period, do not eat fish, shrimp, crab, beef, mutton and other hair on the diet, also do not eat pepper, pepper, ginger, garlic, leek and other spicy and irritating food, in addition to wearing cotton and loose clothing at ordinary times, so that it can effectively alleviate itching symptoms.