Hello Doctors, I got my septoplasty surgery this year in the month of January. earlier before I was taking so many medicine. So because of that my tongue got yellow in colour whatever I eat it get stuck  on my tongue. and tongue changes to yellow creating taste disorder. I have consulted the dentist doctor they told me its because of medicine given me medicine to maintain oral hygiene. I am doing that and told me I am having a low immunity. so please doctor prescribed me medicine which can solve this problem and  what to help which can help in boosting the immunity.