Intramuscular injection usually means intramuscular injection of medication, and intramuscular injection of medication is generally not useful for a woman’s cold, unless it is combined with a bacterial infection, which may require intramuscular injection of antibiotics. Pathogenically, colds are upper respiratory tract infections caused by viral infections and are self-limiting. According to current guidelines, there is no need for intramuscular injection of medications. Colds generally do not require medication, and those with severe symptoms require oral medications (e.g., phenmetrazine tablets) to relieve respiratory symptoms of kala-azar. Intramuscular antibiotics may be needed only if the patient has a definite viral upper respiratory tract infection combined with a bacterial infection. Compared with intravenous drip, intramuscular injection is absorbed more slowly and maintained for a longer period of time, but it may also lead to local hematoma, allergy and other adverse reactions, which must be arranged by the doctor to deal with.