Irritation or chafing from running or other vigorous, prolonged exercise.
Skin of the inner thigh is reddened, excoriated, and may be bleeding in severe cases.
![Runner’s Rash 1 Runner's Rash](https://brooksidepress.org/mil_ob_gyn/wp-content/uploads/2015/07/runrash-300x221.jpg)
Treatment is local therapy, keeping the area clean, dry, and untraumatized by continued exposure to rubbing.
Prevention consists of:
- Avoiding cotton underwear when engaged in vigorous, repetitive physical activity. It gets wet and soggy, becoming an abrasive mass that wears away at the skin.
- Use petroleum jelly to lubricate the area while running.