After prk i keep having bad taste coughing white small balls (mucus) what is the cause of this? my blood test were good, should i see an ent doctor?

pRK little white bal: I really am not familiar with this abbreviation. These little white balls are likely tonsilliths these are little food particles that get stuck inside the crypts of the tonsils. They are small and hard and very smelly. You should have some body check your tonsils to are if they have deep crypts good luck and feel better.

Yes: Unless you are still taking Prednisone acetate which can seep into the mouth through the nasal passages and leave abad taste. The suspension is white and can cause white residue in the eye. I have never heard of it getting into the mouth enough to cause white balls.But it could possibly happen..