The first step in avoiding the pain of chafing is to prevent it from happening. But sometimes -- especially in sweaty weather -- you'll return home to find some part of yourself rubbed raw. Take a tip from the butts of babes: you can soothe raw skin with diaper cream.
Photo by Eddiepics
A zinc-oxide diaper cream like A+D or Desitin (applied after gently but thoroughly washing with soap) keeps injured skin from drying out and may protect against infection. It also provides a barrier between your skin and any clothing that may brush against it while it's healing. Consider your laundry, though: the cream is goopy and you may not want to get it on your best clothes.
Next time you go out, remember to prevent the chafing before it starts: choose clothes and sports bras that fit well, consider nipple guards or band-aids if that's a sore spot for you, and apply a lube like BodyGlide anywhere that might give you trouble.
Sweat makes chafing more likely, so even if you've run a certain distance without problems in the past, that same distance on a warmer day (or if you're pouring water on your body to cool down) could leave you with painful souvenirs. Check out the link below for more on how to prevent and treat chafing on the run.
How to Prevent & Treat Chafing [Runner's World]