My son has tubes also and my doctor told us to NEVER use any kind of drop's in his ears after tubes because it goes straight to his eardrum. The only tubes we are to ever use is the drop's they gave us for if he has a little drainage or infection. I think I would take him in and have his ear checked because I would be afraid the swimmer's ear may have maybe been why he screamed. I would at least call the nurse and ask them if they think it's okay. Just a suggestion, but I would not use any other drops in his ear without checking with them first. They should really put a warning on those and the numbing drops.
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