how to stop your thighs from rubbing together while running
Apply petroleum jelly or baby powder to your inner thighs prior to beginning running. These applications can help the skin rub together with less friction. Because friction leads to chafing, this can prevent future symptoms.
Proper hydration is also important to preventing chafing. Make sure you follow steps to stay hydrated during your runs. Since chafing can be caused by loose running clothing, it's better to wear running clothes that are snug. Some runners prefer to wear spandex bike shorts to prevent chafing between their legs. Get more tips on what not to wear when running.