Acute benign myositis in children does not usually resolve on its own, and symptoms gradually disappear with prompt treatment. Acute benign myositis in children is mainly caused by viral infections, such as Coxsackie virus, influenza A or B virus, or HIV infection. Acute myositis caused by these causes usually cannot be cured on its own, and with timely and targeted treatment, the symptoms of myositis can gradually recover. The current diagnosis of acute benign myositis in children should pay attention to rest and reduce the amount of activity during the acute phase. Antiviral drugs, such as ribavirin, can be used under doctor’s supervision. If necessary, supplemental vitamin B1 and vitamin B6 can be used to supplement the treatment, and cephalosporin and amoxicillin can be used to treat combined bacterial infections. Acute myositis in children should be treated immediately upon diagnosis to avoid aggravation of the condition. The above drugs should be used under the guidance of specialized physicians.