Red bumps on the body are considered to be possibly nodular itchy rash and papular urticaria, as follows: 1. Nodular itchy rash: usually occurs on the trunk and extremities, the rashes do not fuse with each other but are isolated scattered nodules with a hard texture. This disease is mainly due to patients with serious medical diseases, such as cirrhosis, ascites, chronic renal failure, or due to allergies. Patients can take oral levocetirizine hydrochloride oral solution and intramuscular chlorpheniramine maleate injection, which can have a good anti-allergic and anti-itch effect. Patients also need to use topical fluticasone propionate cream or mometasone furoate cream, apply and then seal the package treatment, which can make the medicine quickly penetrate into the patient’s rash and promote the rash to fade quickly; 2. Papular urticaria: caused by insect bites, patients can take chlorpheniramine maleate tablets orally and apply zinc oxide ointment topically for treatment.