I had read that it was bacteria related. Here's what I found:
- Washing the shinguards in the washing machine with detergent did not work.
So taking a page from my own book, I decided to treat it like diaper rash and used a diaper rash prevention remedy. Here's what worked:
- Wash the foam backing on the shinguards by hand with a heavy dose of liquid hand soap.
- Rinse soap from shinguards and allow to dry thoroughly.
- Once the shinguard stirrup is on the child's foot, liberally apply baby powder to the shinguard foam on the inside before attaching the shinguard with the strap. Note: This will be messy, do it outside.
Since I was trying to get cure the shinguard rash ASAP, I wasn't very scientific. So we're not sure whether either the powder or the hand soap alone prevented the rash. Some other factors could have come into play as well.
- The exertion or sweat level of the children
- The children's skin adapting to the shinguards
- The heat level being lower (we didn't measure the temperatures, but they were relatively constant)
- The children changing their behavior and giving their shins a break by allowing them to vent during breaks or lowering their socks to let more air out.
So while this isn't science, it's something to try. I would be interested to hear your results.