hi, took billy to the vets this evening with a gunky eye and as i thought he has conjuctivitis. the vet gave me a cream to put in his eye and i have just wrestled with him to try to apply it. however i am not sure how much actually went inside his eye - it seemed to sit more on the edges of his eyelids. anyone got any advice for getting this stuff actually in his eye!?!?!? should i be aiming for the eyeball or the tear duct area??