This article is written under a constraint we have imposed on ourselves and which we think improves it. We do not diagnose, we do not treat, and we do not describe how to manage a skin condition. What we can do is describe the environment, describe ordinary everyday care, and then say clearly where the line is and who is on the other side of it.
A great deal of what circulates about swimming and skin sits well past that line, written by people with no clinical training and no accountability. We would rather be short and correct.
What the environment actually is
A treated pool is warm water with a disinfectant residual in it, held at a controlled pH, containing treatment chemicals and their reaction products, and shared with other people. As covered in what pool water actually is, it is a managed system rather than a tank of chlorine.
Skin spends time immersed in that. For most swimmers most of the time this is unremarkable and produces nothing worth writing about. For high volume swimmers it is a large cumulative amount of immersion, which is why competitive swimmers notice things recreational swimmers do not. See competitive swimmers.
Two ordinary observations that are not clinical claims. Water that is warm and moving takes heat and moisture from skin. And repeated washing of any kind, in any water, is drying. Neither of those is specific to swimming pools, and both are why the ordinary routine below exists.
The ordinary routine, which is genuinely all of it
- Rinse in fresh water after swimming. This removes treated water and its residues from skin and hair.
- Dry properly. Including the places that stay wet: behind the ears, between the toes, under straps and edges.
- Moisturise if your skin feels dry. Ordinary emollient, ordinary use. There is nothing swimming specific about this.
- Get dressed and get warm, particularly for children who cool quickly and stop being able to concentrate.
That is the article's practical content. The remaining sections are about where it stops.
If skin is painful, broken, blistered, weeping, spreading, changing, itching persistently, or not settling within a normal timescale, or if you have a rash you cannot account for, this publication has nothing useful to say and would be wrong to try. Speak to a pharmacist, who can help with a great deal without an appointment, or to a GP. For urgent concerns, NHS 111. For information about specific skin conditions, use the NHS and the British Association of Dermatologists patient information site. We do not diagnose and we do not treat.
If you already have a skin condition
Many people with long term skin conditions swim, and swimming is good for people. Whether and how to swim with a particular condition, what to do before and after, and whether any product is appropriate are all questions for the person managing that condition with you, which means a GP, a dermatology service or a pharmacist. It is not a question for a swimming website and it is not a question for a swimming teacher.
What is worth saying to session leaders, because it is a process point rather than a clinical one: hold what the family or the individual has told you, act on what you have agreed with them, and do not improvise. That point is made in what a session risk assessment should cover.
There is a widely repeated set of tips about swimming and skin, some of which may well be sensible and none of which we are in a position to endorse, because we have no clinical expertise and no way to verify it. Repeating advice because it is common is how bad advice persists. The institutional sources above exist precisely so that people do not have to rely on publications like this one for clinical questions.
Does the environment change the skin question?
Indoors: warm treated water, humid air, long sessions, and no sun component at all. The ordinary routine above is the whole answer.
High volume indoor swimmers accumulate a great deal of immersion, which is why they notice more. It is still ordinary care unless something is actually wrong.
Outdoors: the same treated water plus sun exposure, wind and, in open water, salt or cold. Sunburn is a distinct thing with its own guidance from the NHS.
Salt water has its own everyday effects, covered in skin after salt water. Cold and wind are covered in cold water, wind and skin.
The shower before is a different shower from the shower after
Worth restating because people conflate them. The shower before swimming protects the water and everybody else in it, by removing the material that consumes disinfectant and forms chloramines. It is covered in why pools ask you to shower first.
The shower after swimming is about you. It rinses treated water off skin and hair. Both are worth doing and neither substitutes for the other. If you only do one, the one before is the one that affects other people, which is a slightly unintuitive conclusion and a true one.
Facilities determine whether any of this happens
The routine above is trivially easy at a facility with warm showers, enough of them, and somewhere to get dry. It is close to impossible at an outdoor venue with a cold hose, or at a busy leisure centre where a lesson turnaround means thirty children have four minutes.
That is an operator and programme decision rather than a personal one, and it is the reason this article ends with a split block rather than a list of tips.
Whether the after swim routine actually happens
Owns doing it where it is possible: rinse, dry, dress, moisturise if needed. Owns going to a pharmacist or GP rather than to the internet when something is actually wrong.
Owns building time for it into the session rather than assuming it, particularly with children who will not do it unprompted and who get cold quickly. Owns raising it with the operator or programme manager when the turnaround makes it impossible.
Owns the facilities: shower number, temperature, cleanliness, drying space, and a timetable that leaves room. Owns the water treatment itself, which is what determines the environment in the first place.
Where a duty attachesHealth and Safety Executive, HSG179 Health and safety in swimming pools and the code of practice from Pool Water Treatment Advisory Group for the pool environment and facilities. Clinical guidance from the NHS, the British Association of Dermatologists and National Institute for Health and Care Excellence. Nothing in this article is medical advice.
Summary
Rinse, dry properly, moisturise if you feel dry, get warm. That is the everyday routine and it is short because it should be. If something is actually wrong with your skin, that is a pharmacist or a GP, and this article stops there on purpose. If a facility makes the routine impossible, that is worth raising with the facility rather than treating as your problem.