What are the good ways to treat winter cough and chronic cough caused by allergies

Morning expert outpatient service, to a patient, would require an ct, ct, I asked him why he want it originally he cough for more than a month, back and middle also eat a lot of drugs, cephalosporins, azithromycin chronic cough caused by allergies, luo erythromycin, and several kinds of cough medicine, it is good to eat a bit, a withdrawal is cough again in a few days, phlegmy much, no fever, go on to ask the history, it is during the National Day catch cold catch cold catch a cold. So what is the patient thinking about? I consider post-infection cough (PIC), which means that after acute respiratory infection, the symptoms of the acute phase of infection itself disappear and the cough still does not last more than 3 to 8 weeks. So this patient is on antibiotics, right? No, the common cold is usually a viral infection and does not require antibiotic treatment. Does the patient need a CT scan now can allergies make you cough? I don’t think it is necessary for the time being. I can give