Cough since 3 months. Hospitalized once.

She sleeps with oxygen night times from an year From 4 months cough but no sputum.. dry cough.. oxygen concentrator given is 3.5 to 4 litre.. When she gets cough she coughs twice or thrice continously, she gets like 4 to 5 times a day She has take nearly 10 bottles of *ascroil d plus syrup* from 4 months It's not reduced. For once it reduced and Again started. Home remedies like guagling, steem, Basic syrup and inhaler is given. Blood test thyroid test scan part is done. Last may she got operated for Gall bladder surgery...the bladder was removed along with stones....And there was bile leak in her stomach. Also staturation was low . And after a month they did procedures.. cathedral twice n they put stent...and by Oct they removed that she was infected with covid Last July.. n from this year Feb...cough is fluctuating like up n down For 6 months after covid she was kind off fine. In Oct something she got urine infection n lung infection n got hospitalized once.