How would you go about keeping it open?
Becky
Does it feel like it's an abcess with puss in it that would drain? or is it more of a meaty swelling? If you can peel the scab off and get it to drain, I'd just keep taking the scab off... If he'll let you do that of course... might help to wet it down to soften it, either just with a hose or with a warm sponge or towel. I wouldn't work it too hard, but if you can peel the scab off and push on it and get it to drain and stay drained the better. Being on the underside, it would drain on it's own if you can get it open without major surgery.