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

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