There is a slight amount of clear discharge at first. Without treatment, the discharge becomes yellowish. Cause Swimmer's ear is an infection of the skin lining the ear canal. Ear canals need to be dry. When water gets trapped in the ear canal the lining becomes swollen and prone to infection.
Children are more likely to get swimmer's ear from swimming pools than from lakes.
The chlorine in pools kills all the helpful bacteria in the ear canal, and harmful bacteria tend to take over. With treatment, symptoms should be better in 3 days. Run the eardrops down the side of the ear opening and move the outer ear so that air isn't trapped under the drops. Continue using the eardrops there are no symptoms for 48 hours. Use acetaminophen or ibuprofen for pain relief.