Cas,
My husband had his PEG tube for about 5 months. He only had to cover it for the first week when showering. After that, never covered and just put hydrogen peroxide around the tube area. He never had any problems during the whole time he had it. For the first week or two, though, it did seem to pus a bit and run. I remember being worried about that thinking he might have an infection, but shortly after that it dried up and was fine.
God bless,
Debbie