Chickenpox and Swimming Lessons: When Can Your Child Get Back in the Water? [2026]

It’s autumn and on the school playground, the conversation quickly turns to spots. Chickenpox comes in waves, and once your child has it, you face a practical question: can they go to swimming lessons or not?

Short answer: no, as long as there are still wet blisters. Why this advice exists, when your child can get back in the water, and how to catch up on a missed week without losing skill level.

Chickenpox and Swimming Lessons: The Short Answer

Children with chickenpox should better not swim. This advice comes from the RIVM, with two reasons: warm swimming water worsens the itching, and the chickenpox wounds can get infected after swimming. The GGD states it more precisely: wait until the blisters have dried well.

In practice, this means no swimming lessons as long as there are open blisters or wet spots, and no swimming if your child still feels ill. Once all blisters have crusted over and your child is back to normal, they can usually return.

What Chickenpox Exactly Is

Chickenpox often starts with mild fever and lethargy. A day or two later, small red bumps appear, usually first on the head or torso. These bumps turn into blisters that can itch intensely, on the body, face, and scalp. Sometimes they are also in the mouth, which is painful when eating and drinking. After a few days, the blisters dry into crusts. Symptoms last about ten days.

Almost every child gets it once. More than 95 percent of children in European Netherlands have had chickenpox before their sixth birthday. Each year, between 200 and 350 patients with chickenpox end up in hospital, mostly children under four years old. Usually, it’s a harmless childhood illness, but not always, and that is exactly why swimming pools and swim schools are cautious.

Why a Swimming Pool Reacts Differently Than a School

At school or daycare, a child with chickenpox may attend if they feel well. Staying home doesn’t help: your child is contagious before the first spots appear, so other children are often already infected. Swimming is different. Warm water contacts the skin, your child sits for half an hour in a wet environment and scratches the spots more easily, which opens the door for bacteria.

How Long Is Chickenpox Contagious?

Contagious Before You See Anything

Chickenpox is contagious from two days before the rash appears. The virus is in the throat and nose and spreads through coughing, sneezing, and talking. Infection can also occur via fluid from the blisters. Those infected develop spots within one to three weeks.

Until the Last Blisters Have Crusted

Your child remains contagious until all blisters have crusted, usually up to seven days after the blisters appeared, according to the RIVM. Thuisarts says the same in plain language: once the blisters are dry, chickenpox is no longer contagious. Count on about seven days and watch the skin rather than the calendar.

The Skin Is the Signal, Not the Fever

The moment the blisters dry determines if your child can participate again. As long as there is still fluid, there is both a risk of infection and inflammation. When the crusts are dry and flaky, your child is on the safe side.

When Can Your Child Go Back to Swimming Lessons?

Dry, Fit, and Fever-Free

The rule of thumb from the RIVM and GGD is to wait until the blisters have dried well. Two practical conditions apply: your child must feel fit again and be fever-free. For a child who has been quite ill for ten days, the first lesson afterward is often a short one.

Ask Your Swim School About Their Own Policy

Schools may be stricter than the national advice, and many are. Some swim schools ask for an extra day after the crusts are dry or a notification from parents before the child returns. This has a practical reason: one infection in a group of eight often means missing four children a month later. Check the policy at your own school so you know what to expect.

Impetigo: The Complication That Delays Return

Chickenpox and impetigo often occur together. If your child scratches open the blisters, bacteria can enter and cause impetigo: yellow blisters that open into wet spots with yellow-brown crusts. According to the RIVM, impetigo is contagious up to 24 hours after starting antibiotic treatment and at least until the blisters have dried. As long as the spots are still wet, swimming lessons are not a good idea, even if the chickenpox itself has dried.

What If Your Child Still Has a Few Crusts?

A loose crust that flakes is no reason to stay home. Wet spots are. If in doubt, send a photo to the swim school or call. An instructor at the poolside can immediately see if the water has anything to do with it, and the school carries the risk if something goes wrong.

Other Contagious Childhood Illnesses and Swimming Lessons

Chickenpox is not the only childhood illness that disrupts swimming lessons. The advice varies because some viruses spread through the air and others through fluid on the skin or via stool.

This table summarizes the advice from the RIVM and GGD. Where no national swimming advice exists, the rule of thumb is that a child who does not feel well should stay home and coordinate with the swim school. The RIVM lists illnesses for childcare and school by condition, which also helps in setting policies at swim schools.

Reporting Absence, Catching Up, and Skill Loss

Missing eight to ten days sounds like a lot, but it usually means two or three lessons. Still, it’s good to know where your child will rejoin.

How to Report Absence Without Hassle

Report illness immediately, not just on the day itself. The instructor can then adjust the group and knows a spot is free. In the Swimmigo app, the swim school sees who is coming and who is not, which helps avoid counting heads at the poolside and calling parents who forgot to report.

Where Your Child Rejoins

You don’t have to guess what was missed. In a student tracking system, each exercise is marked as completed or not, with the date. As a parent, you can see this and immediately know if your child joins the next lesson as usual or repeats an exercise first. The levels and skills are the same for every school, so when moving or switching, the overview stays accurate.

What You Do and Don’t Do at Home

Practicing in the water is off for a while, but dry practice is possible: arms, legs, and the swimming stroke movement on a mattress or couch. Make sure your child does not scratch and keep nails short, as scratching worsens itching and opens blisters. Showering or bathing is allowed but keep it short and not too warm.

What a Swim School Does With a Report

Informing the Group Without Naming Names

If there is chickenpox in a group, it is common for the school to inform other parents so they can watch for symptoms. This can be done with a note or a message to the group. Names are not necessary, which saves parents from wondering if they reported on time. On the page for instructors, you can see how to send such a message to a whole group in the app.

Documenting Illness Policy Once

Having the same discussion every autumn about when a child can return takes more time than writing it down properly once. Record what you ask from parents in case of illness, your stance on chickenpox and impetigo, when a child can return, and how absences are reported. Put this in your app or on your site and repeat it at the start of the season. Parents who know what is expected report earlier and more accurately.

Chickenpox in Other Countries

The Netherlands Does Not Vaccinate Routinely, the United Kingdom Does

Chickenpox occurs worldwide, but countries handle it differently. In European Netherlands, vaccination is not part of the National Immunization Program, reports the RIVM; on Bonaire, Sint Eustatius, and Saba it is, and for some medical risk groups the vaccine is reimbursed. In the United Kingdom, children receive a combined vaccine against measles, mumps, rubella, and chickenpox at 12 and 18 months, writes the NHS. In the United States, vaccination has been part of the standard program for years: the US CDC reports a decline of more than 97 percent in cases since the program began.

Why This Difference Matters for a Swim School

Swim schools in Europe and beyond therefore do not receive the same advice. A school in a country with routine vaccination sees chickenpox less often; a school in the Netherlands sees it in waves each autumn. Working internationally means your illness policy must be explainable to parents used to different rules. A message readable in five languages helps avoid many misunderstandings.

Summary

Swimming with chickenpox is not a good idea as long as there are wet blisters. Count on about seven days until the blisters have dried and ten days until your child is fully fit again. Report illness immediately to the swim school and check where your child last was with the skills. Being sick for a week rarely costs a skill level: it’s a few lessons, and with progress tracked in the system, you immediately see where your child re-joins.

Read more about the same group of symptoms in the overview of swimming and health for children and in the article about colds and swimming lessons.

Sources

• RIVM: Chickenpox, updated 2026
• Thuisarts (NHG): My child has chickenpox, should I do anything?, last updated July 2, 2026
• GGD North and East Gelderland: Chickenpox
• RIVM: Impetigo, updated July 9, 2026
• RIVM: Hand-Foot-and-Mouth Disease, updated March 26, 2025
• NHS: Chickenpox, revised January 31, 2025
• CDC: About Chickenpox, updated April 24, 2024
• RIVM: Information on illnesses for childcare, June 2025