RESUMEN
Thermalism is one of the oldest medical disciplines with a history of thousands of years and whose benefits are well documented. The therapy is based on a program of daily care for a period of three weeks in a thermal station. Hydrotherapy is particularly suitable in dermatology since the thermal water will be in direct contact with the skin lesions. The main indications are eczema, psoriasis, chronic pruritus, and wound healing disorders with new indications emerging, such as for cancer treatment-related side effects and follow-up care after cancer treatment. Thermalism encompasses much more than hydrotherapy, acquiring over the past few years a distinct place in therapeutic education. The therapy, which for a long time has been seen as an alternative to pharmacological treatments, should be positioned as an adjunct treatment for chronic dermatoses, aiming at reducing in the mid and long term the severity of the disease and drug dependence. © 2020 Elsevier Masson SAS. Tous droits réservés.