Talk to General Physician on Asthama Patient/Covid Suspect

My Mamoo is asthama patient since long, he uses inhalers as recently go some issue relating to neuro and for that he was going to hospitals for OPD TESTS AND Phsiotherapy. 4days back he got covid related symtoms. Dyheria, mild fever body ache head ache is also diabetic and hypertention. He is taking his normal routine medicines along with panadol and anti alergi for throat sour and fever etc. he takes steam and take yakhni as well, so far no breathing problems Alhamdolillah. please suggest any other things to be done with respect to asthama in this time? ( so far he is not tested for covid)