Red pimples, no itching, no pain.

The body shows red pimples, painless, clinically more common several problems: the first, viral infection caused by, more common respiratory tract virus infection, will cause the body to show dense distribution of this red papules, or pimple rash. The second, seen in some allergic purpura or thrombocytopenia purpura, can show some symmetrical papules or small pimples, generally speaking, painless. The third, found in some keratotic skin diseases, such as some ichthyosis, or some keratotic papules, hair red pityriasis, etc., will also show some painless lumps on the body. It is recommended to go to the hospital to find a doctor, do some necessary examinations to clarify, and then targeted treatment.