Talk to Dentist on Mouth And Throat

Aslamu alykum Respected Doctors, I am suffering from a problem for few years that. I have white coated tongue and when I scrap my tongue, the white coating gets off and after few hours it comes back. I use scrapper to remove it. Due to this white coating, I have severe bad breath problem. When I scrap the tongue, than bad breath disappears for a while. If I don't eat something for few hours, the bad breath become more and more. Please someone tell me how to get rid of this white coating tongue permanentaly. Someone told me you have some kind of fungal infection in throat maybe. When i get up in the morning, the white coated tongue looks so thick and nasty with severe bad breath. I have attached 2 pictures before scraping the tongue and after scraping tongue. Please someone recommend me a good medicine for it. I brush twice a day but that's not the solution of it as the tongue is effected. Please recommend me good medicine. I want to tell you one more thing if its important that I had