Respected Vipin 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 - pollens in air / vehicular pollution - maintain hydration levels - nutritious diet to combat with possible environmental issues. - avoid excess of cooler / air conditioners detrimental for her lungs - avoid stress / anxiety - have regular sound sleep of 6-8 hours - avoid pain killers 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 Health care magic & reviewing my answer thoroughly. Welcome for any further queries. Wishing her happy healthy life ahead, afterall she deserves it, she has very good care takers like you . Regards dear take care .