Conversation: The conversation between human and AI assistant.
[|Human|] I have a dry cough for the past 2 months which my doc says could be an allergy (hay fever).  I have taken antibiotics for 5 days, the cough has not gone.  I now take Zertec every day some times twice a day and it seems to give me relief.  However what I am concerned about is that since the cough I keep getting a sudden ache run down the back of my head which occurs atleast twice a day.  Is there reason to be concerned.
[|AI|]  Hi, the cough for over 2 months means there may be growth of uvula, a projection at the posterior end of the soft palate. When it grows due to cold, sinusitis, pharyngitis it touches the pharynx, and produce cough. Other causes are eosinophilic, (can be confirmed by D. C, and A, E. C)and tuberculosis. The posterior headache may be present in sinusitis.  For local relief of cough there are preparations containing codeine.  For total treatment i to my patient with such symptoms prescribe lifetime, and syrup containing codeine. Thank you.