My elderly dog, 2 and a half months away from 16 years old has an eye ulcer in one eye and was brought to the Vet twice this week about it and has been on eye drops twice a day. But he has gunk stuck to his eye and it is well stuck on there as I tried to remove it with my finger but it's stuck plus I don't want to put pressure on it due to the ulcer in same eye. It wasn't a problem when he was in with the vet or I would have asked the vet about it.
Is there anything I could use to soften the gunk so it would slide off with my finger. Cheers.