B.H.
My daughter has had tubes three times, the last time this past Friday and every time, two seperate doctors have told me not to worry about ear plugs in the tub. As long as he isn't laying under the water for long periods of time he should be fine. I was also told this for swimming in a pool as well. (Lakes, rivers and oceans are off limits though) I actually had one of my daughters tubes pop out of her ear from the suction caused by one of her plugs when it came out. (Her right ear drum is weak) So as far as I have been told he shouldn't have touse them for a bath. The tube drains any water that gets in there if it does anyway. Hope that helps.