The chlorine used in swimming pools helps limit bacterial growth and reduce the risk of transmitting certain infections. At normally permitted concentrations, it does not pose a major threat to healthy skin. However, repeated or prolonged exposure can damage the hydrolipidic film that protects the epidermis, causing tightness, dryness, itching, or redness after swimming.
People with sensitive skin, eczema, atopic dermatitis, or certain allergies are more prone to irritation. Reactions attributed to chlorine are not always true allergies; they are often linked to its drying effect or to chloramines formed when the product comes into contact with sweat and other organic matter. Improperly balanced water can also increase skin discomfort and irritate the eyes or respiratory tract.
How to protect your skin from chlorine?
Before swimming, it is advisable to take a shower to moisten the skin and limit the absorption of chlorinated water. After leaving the pool, rinse thoroughly with fresh water, use a gentle cleanser, and dry your skin without rubbing. Applying a moisturizing or emollient cream will then help restore the skin barrier. The French National Health Insurance (Assurance Maladie) specifically recommends this rinsing and moisturizing routine for people prone to eczema. ( Ameli)
Swimming should be temporarily avoided if you have an open wound, significant irritation, a skin infection, or a tattoo that is still healing. If red patches, burns, cracks, or itching persist despite rinsing and moisturizing, it is best to consult a doctor or dermatologist. Prompt medical attention is necessary if the lesions spread, become painful, show signs of infection, or are accompanied by breathing difficulties.
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