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

### input:
I am a voice teacher and have one student (an older man in his 60 s) with a wonderful voice, but is plagued by constant phlegm. He is always clearing his voice and this malady has plagued him all his life. He takes antihistamines and this seems to help (Singulair 10 mg). I took this med and it helped me when I was having allergies. This gentleman is a bit better, but not completey. Is there something he could do to get rid of this? His vocal chords are fine according to his doctor.

### output:

Hello, Thank you for asking at Chat Doctor. I went through your query and would like to make suggestions for him as follows:1. It would be best if he is examined by an ENT specialist because common causes of sucChatDoctorplaints are allergic rhinitis, sinusitis, chronic pharyngitis, etc. 2. Singular (Montelukast) is not an antihistamine. I would suggest him to add an antihistamine (like fexofenadine, cetirizine, levocetirizine, etc.) to montelukast, which might work better.3. Regular care of nose and throat like regular steam inhalation (for nose symptoms) and regular warm saline gargles (for throat symptoms) will be helpful to him.4. In general, I would suggest him to avoid exposure to dusts, smokes and air pollution as much as possible.5. I would also suggest him to take adequate fluids during day to maintain HY Chat Doctor. Hope above suggestions will be helpful to him. Should you have any further query, please feel free to ask at Chat Doctor. Wish him the best of the health ahead. I appreciate your concern for your student and asking on his behalf. Thank you & Regards.