Discourage squeezing the incision! This could backfire and cause the internal sutures to fail and expose him to an infection that is deep, as opposed to a simple external one. Let the surgeon mess with it if it needs it.
A teaspoon a day is no big deal, but let it drain on its own. I had a peritoneal leak that was saturating heavy dressings in a few hours. That thing took a couple of months to heal and it was the beginning of a cascade of complications that were rather huge (with my presacral abscess being the worst). The leak did not cause the presacral abscess, but I did wind up with a bad incisional infection.
Jan 