I would start by asking where the fluid came from. If it is water from her bath, pool, beach, etc. there is a way to dry that up. I have heard that the longer water sits in the ear the more chance of infection. I would find out if the doctor thinks you should "dry" it with a solution. I got a "drying" solution at WalMart for my 7yo. She spends so much time in the pool all summer that she would hear the water in her ear. One use and it was gone and she has never had a ear infection. I don't know the name but found it by the ear plugs but you can always ask a pharmacist. I also heard that a few drops of alcohol or hydrogen pyroxide can work but I don't know which one or how much so ask you doctor he should be able to tell you. A.