### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
my son is 19 years old he got cold and cough , cough gets worse at night he cant sleep took him to the doctor twice first doctor said it is pollen allergy and mild throat infection only prescribed muconyl and bronochol but he said cough even more later doctor prescribed Levofin 500mg but cough is still there with same intensity, he could not sleep whole night. I started rubbing vicks and giving him steam he feels better for 1 hour or so and then starts coughing again. please help.

### output:

Hi, your son has acute infection which has increased his symptoms looking at his coughing I would say there are chances that he has bronchi constriction which is causing breathing problem and excessive coughing. For his infection let him take antibiotics but for his cough your doctor may have to start him with a bronchi dilator inhaler or at least tablets. Now coming to the allergy part, treatment has to be in step wise manner first if his symptoms is for few months a year like 2-3 months then you start an antihistamine which he has to take daily at night. If your symptoms still persist then your start using steroid nasal spray, it has no side effect, and it controls the allergy very well, and you should start 2 weeks before his symptoms start. If this also does not cure you. Then get yourself tested for allergy, it is called skin prick test you will know what you are allergic to, then if possible you can avoid the allergen, or you can start treatment called immunotherapy. This is currently the best treatment available and your symptoms will easily reduce by 80-90 percent kindly visit you rent specialist he will guide you further and immunologist he will do skin prick test and immunotherapythank you Chat Doctor. 