Hello~Even though there may not appear to be an infection anymore, it is still a good idea to have the issues causing it checked out. I would certainly see the ENT and have it taken care of. Having a hole in your tonsils and still some pus means it could flare up at any time, and this time, it could be worse.
So, your pcp is monitoring this? If you have great insurance and it doesn't cost an arm and a leg, never hurts to get it looked at by an ENT but otherwise, it sounds like you've covered your basis. I'm glad you have no symptoms!