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

### input:
Hello, My mom is 84 and has persistent dry cough for about 2 months. Earlier she had it for 2 years and somehow it went away. Now it has returned. The Doctor is giving her Montek 5 mg twice a day. Another Doctor suggested that we give Montek 10 mg once a day as 5 mg does not cross the threshold to be effetive. The first Doctor says that 10mg could be addictive and refuses to change over. We have checked once for Eosinophyles and seems to be ruled out. Vipin

### output:

Respected Vi pin hi I evaluated your query thoroughly.*This is in relation with her weakened immune reactions of the lungs to fight against any minor bacterial viral infiltrations.*Any molecules are just supportive, main stay of her betterment is to boost-up her lungs' immunity by certain ways as I recommend here :- very regularly deep breathing exercises, YOGA - regular walk in fresh air for 30 min. to rejuvenate her lungs with fresh Oxygen.- avoid smoking / alcohol if consuming-avoid exposure to noxious substances - pollen in air / vehicular pollution-maintain HY Chat Doctor. - avoid excess of cooler / air conditioners detrimental for her lungs-avoid stress / anxiety-have regular sound sleep of 6-8 hours-avoid painkillers if taking-regular Spirometry exercises at home for lungs which is curative as well as assessment to see the progress of improvement in lung capacity. Hope this clears your doubts. Thanks for using Chat Doctor & reviewing my answer thoroughly. Welcome for any further queries. Wishing her happy healthy life ahead, after all she deserves it, she has very good care takers like you. Regards dear take care.