Worried about mouth/throat irritation

[Guest guest]

My son is not much of a drinker plus still uses a sippy cup. I have

been using smooshed banana on a spoon to get in the enzymes(open the

capsule and hide half of contents inside covered by more banana) I

have noticed him putting his tongue down in front of his lower gums

and into his side cheek alot and wonder if his tongue or mouth is

sore from the enzymes. He will not tell me if something hurts(I guess

rather he cannot tell me)even though he is getting more verbal. I try

to look but all I see is a red dot on upper lip on the outside. He

drinks very little even when I beg him to drink after the banana. Can

the irritation build up over time and become a problem? How would I

know if it was irritating his throat? Thanks H.