Sir my father mother and brother are positive for corona already done fabiflu doses, father ct value was 21 and mother 26 but doctor suggested not to give fabiflu to mother as she is not having much symptoms but she is feeling very weak and mouth is drying up she is diabetic and blood pressure patient.my brother got ulcers in throat and no sense of smell or taste.. They r under quarantine at home and oxygen level is good what else they should do...