14 Days after Covid. Still coughing. Do?

My mother  got tested positive for covid on 20 april. She had very mild symptoms.Fever 99 only one day ,Little bit of sour throat. But diarrhea started on 22 april continued to 29 april. Her medicine were Pacimol 650mg Ivermectin 12mg Doxycycline 100mg Rhinoza F Immu C Plus Betodine gargle Karvol Plus steam Ricosprin 5mg for 30 days Started after 5 days of covid detection due to late laboratory reports For diarrhea Bacilon twice a day for 5 days Eldoper 2 mg thrice a day for 5 days Stopped Bacilon and started Sporolac DX 2 tab thrice a day continued Eldoper 2mg Asthakind DX syrup thrice a day, had to continue the syrup because she hasn't got relief from cough. Her Spo2 level are always normal ranging between 95-98 upto day 7 after it was 97-98. Also she does 6minute walk test every day spo2 levels are 97-98. No fever since first day. Right now on the 12th day she has dry cough and has increased a little on day 13 and 14. What should I do?