Eli5 : Why does it burn when water touches an open wound?

Question

Eli5 : Why does it burn when water touches an open wound?

In: 5

Answer 1

When water touches an open wound it can cause it to burn because when water touches the wound it can wash away some of the natural oils and protective barriers that usually keep germs out. This can make the wound vulnerable to germs and other harmful substances, and if these germs get inside the wound it can cause it to burn from the inside out.