Thanks for posting your query.
doesn't mean HIV, although HIV is associated with impaired immunity.
Oral thrush is due to opportunistic infection
with a commensal fungus, candida albicans.
This may be due to impaired immunity or due to excessive antibiotic use (as in your case).
You should consult with ENT surgeon/ physician and should take treatment for oral thrush.
Presence of oral thrush is not an emergency and will not give long- lasting effects.
You can apply Clotrimazole/ ketoconazole
lotion with lignocaine solution.
You should also stop smoking.
Presence of white spots
on cheeks may be due to bacterial infection.
You should take proper antibiotic
for clearance of your infection.
Dr. Mayank Bhargava