A lot of red pimples have grown on my body, which is particularly itchy. What's the matter, hurry up?

Considering your situation, you may have allergic skin disease and urticaria. Suggestion: Avoid fish and shrimp, strong tea, coffee, alcohol, onions, garlic and other allergic and irritating foods. Avoid all kinds of external stimuli, such as excessive washing, scalding with hot water, soapy water, artificial fibers such as animal fur and feathers, glass filaments and other substances that are easy to irritate patients' skin. Do not scratch violently to prevent infection. Eliminate psychological factors.