Colds are caused by viral infections, and antibiotics such as clarithromycin are not recommended for the treatment of a sore throat due to a cold if there is no basis for a secondary bacterial infection. If symptoms are severe, symptomatic medications may be given. Colds are caused by viral infections. Except for influenza, common colds often have a certain ability to heal on their own, unless there is an immune dysfunction disease, generally do not need to be actively anti-viral infection treatment. Antibiotics such as clarithromycin are not necessary if there is no evidence of a bacterial infection, such as a yellow runny nose or yellow sputum. If the sore throat is severe and intolerable, medications such as cotrimoxazole tablets and cotrimoxazole gargle can be used under the direction of a physician to alleviate the symptoms of cold-induced sore throat. Dry and sore throat can also be caused by other diseases, if the symptoms of dry and sore throat are not relieved or aggravated, it is recommended to consult a doctor in a timely manner and follow the doctor’s instructions for treatment.