Folliculitis is caused by sitting in a hot tub.
You can damage your hair follicles by:
- Touching or rubbing your skin frequently
- Wearing tight clothing
- Having skin rub against skin
When your skin is damp and hot, it’s easier to damage your hair follicles and get an infection. This can happen when tight clothing rubs against your skin while you’re bicycling on a hot day.
Many people get folliculitis from hot tubs. This is so common that there’s a condition called “hot tub folliculitis.”
The damage can also happen while you’re using a hot tub or whirlpool. When this occurs, the acne-like breakouts tend to appear on skin that was covered by your bathing suit. Most people see breakouts about 12 to 48 hours after using the hot tub.