Moisture and Heat Can Change the Skin’s Response
Sweat can make clothing-related irritation more likely.
Warm, moist areas can experience increased friction because damp fabric stays against the skin. Prolonged moisture can also make irritated skin feel uncomfortable and may contribute to certain skin problems.
Changing out of damp clothing after exercise and keeping skin folds reasonably dry can be helpful. Breathable fabrics may also improve comfort, particularly during hot weather.
This does not mean that every mark associated with moisture indicates an infection. Temporary redness or indentation can occur simply because the skin has been exposed to heat, sweat, and friction.
Why Underwear Can Leave Marks on the Skin
Underwear is designed to stay close to the body, which means certain areas experience continuous contact and pressure throughout the day. Elastic around the waist, hips, thighs, or under the breasts can press into the skin.
