The normal value of Mycoplasma pneumoniae antibody is 1:20, and 1:80 in adults. A mild cough indicates that it is caused by a mycoplasma infection, that is, positive for Mycoplasma pneumoniae, which leads to acute respiratory tract infections. Compliance with medical advice can be treated by medications such as roxithromycin and azithromycin. 1. Adults with mycoplasma antibody 1:80 and slight cough indicate acute respiratory tract infection, and the causative agent is considered to be Mycoplasma pneumoniae. Mycoplasma infections are usually characterized by a dry cough, which may be accompanied by chest pain and blood in the sputum. You can follow the doctor’s instructions through the roxithromycin, azithromycin and other drugs for treatment. 2. Drink more water, eat more fresh vegetables and fruits, do not eat spicy stimulating food. Pay attention to keep warm, prevent cold. Exercise properly to improve immunity. It is recommended that patients should go to the hospital in time to confirm the diagnosis, and standardized treatment under the guidance of the doctor.