Itchy bumps on the body are considered to be chronic urticaria caused by allergies, which can be treated by the following methods: first, find the allergen, find the cause of the allergy, and get rid of the allergen; second, do not eat fish, shrimp, seafood and spicy food, and keep the environment dry and ventilated; third, take oral antihistamines, such as loratadine tablets, cetirizine hydrochloride tablets, epinephrine hydrochloride tablets. If the effect of using one kind of anti-allergic drugs is not good, two kinds of anti-allergic drugs can be combined; fourth, other drugs, such as oral skin itching granules, moistening and anti-itching capsules, compound glycyrrhizin tablets, vitamin C, etc.; fifth, topical drug treatment, you can use topical dehumidification and anti-itching ointment, fluticasone propionate ointment, ethanolamine ointment, etc.