My father is a non-smoker and a non-drinker. he has a small white patch on his palate. my dentist has advised a local applicant. the whiteness is gone but it is still like a little patch. what should i do?

Stubborn white: Lesions in the mouth need close scrutiny and a biopsy in most cases. Seek a consult with an oral surgeon.

Possibly candidiasis: Candidiasis, sometimes called thrush, is a fungal infection that can cause white patches on the palate in adults who wear upper dentures (you didn't say if your dad wears dentures). Usually these patches can be scrapped off and leave a bleeding surface. It is easily treatable with medication. Ask your dad's dentist what the diagnosis was and schedule a follow up visit to make sure problem resolved.

Patch on Palate: Have your dentist now take a second look at it. If you do not have confidence in your dentist or just want to be sure, have an oral surgeon take a look at it as well. Lesions that last more than two weeks are usually biopsied to be safe..

See a doctor: Even non-an get oral cancer. Get it checked. A biopsy of the palate is easy to do.