These drops actually work in stopping water from getting trapped in your ear! I was recommended Swim Seal by a friend after mentioning that my daughter had yet another ear infection. I honestly didn't think they would work and my daughter didn't like the idea of drops prior to swimming. However on the first use, my daughter was all smiles and said her ears felt better - no more water in them! Now she won't swim without Swim Seal, especially when we use public pools. We no longer have to use the various ear plugs that didn't really work. My only complaint now is that it doesn't seem to be stocked in any of my local pharmacies, but at least I can get it on AMAZON.