My father age 52 has been tested covid positive since 4 days and since 6 days he have fever more than 100 °F and is not changing even after proper 4 days of medication (fabiflu,zinc,vitamin c , etc.). My concern is that what to do now? Is it normal if he has fever since 4 days on and off though oxygen level is 96-97 . If it is not normal then what are the steps and way ahead i should look for ? Kindly Help