What is a Hot Tub Rash?

close up of water in a hot tub

You may have concerns about getting a chemical rash due to bromine from a hot tub. If you have the misfortune of developing a rash after using a hot tub you’re not alone, chemical sensitivity as well as bacteria that can thrive in poorly maintained hot tubs can lead to a rash after use. Learn how to avoid getting a rash from using your tub! 

Chemical Rashes from Hot Tub

There are two types of rashes that can occur after using a hot tub, the first is caused by your skin’s sensitivity to chemicals used in the water and is referred to as chemical dermatitis. This form of rash is typically caused by the chlorine or bromine used to sanitize hot tub water. This type of skin irritation occurs most commonly in those with sensitive skin, but anyone can experience hot tub chemical dermatitis if sanitizer levels are too high.

Hot tub folliculitis is a skin infection that occurs around hair follicles from a type of bacteria called Pseudomonas aeruginosa which thrives in warm, moist areas. Unlike most other types of bacteria it can survive in water that’s been chlorinated, making it difficult to kill off. It’s most common in tubs and warm pools that aren’t treated regularly or thoroughly and also thrives in wooden tubs. 

Hydrocortisone cream can help relieve itching and reduce inflammation caused by chemical dermatitis, and an antihistamine cream can help hives. If you’ve contracted a bacterial infection it usually clears up on its own within 2-10 days but it’s always wise to consult with a doctor especially if symptoms don’t improve or worsen. 

How to Prevent Hot Tub Rashes 

A chemical rash is easily prevented by ensuring the chemical levels in your tub are balanced. The Centers for Disease Control and Prevention (CDC) recommend that hot tubs contain free chlorine at 3–10 parts per million (ppm), bromine at 4–8 ppm and pH levels should be between 7.2–7.8. Chlorine breaks apart faster in high temperatures, so you need to be more vigilant about checking the chemicals in your hot tub than you would in a pool. 

Irritated hair follicles will leave you more susceptible to hot tub folliculitis, so it’s best to avoid shaving or removing hair immediately before using a hot tub. Waxing should be done at least a day or so in advance if possible. Don’t sit around in a damp swimsuit, shower immediately after getting out of the tub and wash yourself and your suit thoroughly with soap and water.

The best way to prevent hot tub rashes is to only use tubs that you know have been regularly and thoroughly treated and cleaned. This means that chemical levels and water filtration devices are monitored and maintained. If you have questions about caring for your hot tub give us a call at 970-879-4390 or contact us here