From OpenwaterpediaBeard-on-skin chafing is friction, irritation or lacerations in the skin due to repeated rubbing of beards and facial hair against skin and body parts.
The swimmer always used Vaseline to prevent chafing under his arms.
Types of Chafing
There are fundamentally 4 types of chafing:
1. Skin-on-skin chafing: improper stroke mechanics can cause chafing as can a cross-over kick or breathing.
2. Fabric-on-skin chafing: a swimsuit, goggles, swim cap, protective suit (e.g., stinger suit), or wetsuit can cause some mean chafing.
3. Hair-on-skin chafing: facial and body hair can cause chafing.
4. Beard-on-skin chafing: facial hair can cause chafing.
1275–1325; ME chaufen to heat, rub, chafe.