Evaluation of the Medical Benefit of Spa Therapy on Fibrosis After Radiotherapy for Breast Cancer or UADT (Upper Aerodigestive Tract) Cancer

Radiation-induced fibrosis is an equivalent of an "orphan disease", in which oncologists have only recently shown interest, despite its prevalence. No study on the medical service provided by crenotherapy has been published in late radiation-induced fibrosis, which shares a common pathophysiology and medico-psycho-social sequelae with the sequelae of burns. Chronic progressive dermatoses are part of the 12 main therapeutic orientations of medical thermalism. In particular, burn scars are a very current indication. Crenotherapy allows the attenuation, or even the disappearance of: pruritus and dysesthesia, local inflammation, hypertrophy and sclerosis and favours the recovery of chronic superficial erosions. Fibrous scars, even old ones, respond favourably to thermal treatments. The thermal treatment combines baths which have a sedative, muscle-relaxing effect and which favour joint mobilisation, sprays which have a decongestant effect and above all thread-like showers which are carried out by jets of thermal water under high pressure for several minutes. The primary endpoint is the self-assessment by the patient of the dermatological quality of life by the DLQI score at 6 months after the end of the treatment compared between the intervention group (immediate treatment) and the control group (delayed treatment after 6 months).