My brother got affected with covid 19 10 days back. Ct scan co rads score 5.lungs affected. He is using medrol 16, amoxicillin,azithromycin500, mucinac ab. He is 42 years ols and diabetic patient. No improvement with that medicines and cough is more. Oxygen level 94. Fever 99. 8f.consulted pulmonologist he suggested above medicines. So many cough syrups are used but cough is still. Can we use any inhalers suggest me as soon as possible. Thank you.