My brother (aged 34) is covid positive. He has continuous fever since 7 or 8 days. Fever becomes 102? at night and 100? the whole day. Other symptoms are- black watery stool since four days with some foam. Extreme headache. Slight cough. Body pain and weakness. Medicines taking- paracetamol, azithromycin, becadexamine, vitamin c. Other complications- diabetes. Cholesterol. Rt-pcr report we have not got till now. Got chest x ray done which seems normal. What can be done? We are feeling extremely helpless.