De Quervain Disease

The objective of the study is to compare pain reduction and disability reduction in two groups of patients diagnosed with de Quervain syndrome who will undergo ultrasound-guided infiltrative treatment with corticosteroid as per normal clinical practice: * the control group will subsequently be subjected to a standard treatment based on the European guidelines of the HANDGUIDE group, * the experimental group will subsequently carry out a program of eccentric exercises.

The goal of this clinical trial is to understand how people make decisions about imaging tests for common musculoskeletal problems (like arthritis, tendon problems, or nerve compression). The study involves adult patients attending a musculoskeletal specialty clinic. The main questions it aims to answer are: 1. Does having a structured conversation about the pros and cons of a test affect how much a person wants to have that test? 2. Does that conversation help people feel more confident and less conflicted about their decision? Researchers will compare patients who have a values-based discussion with a researcher to those who receive brief written information about the test, to see if these approaches affect how people feel about having the test. Participants will: * Read a brief scenario about a proposed diagnostic imaging test (like an X-ray, MRI, CT, or ultrasound). * Either take part in a short structured conversation or read brief information about the test. * Answer a short survey about their thoughts on the test. This study does not involve actual medical testing or affect your clinical care. It is for research purposes only.

De Quervain disease is characterized by an adductor pollicis longus and extensor pollicis brevis tendons inflammation as thys pass beneath the extensor retinaculum at the radial styloid. This pathology is recognized as a musculoskeletal disorder of the upper limb triggering functional deficits resulting to possible modifications in the professional activity, sources of absenteeism, thus constituting an economic cost for society. At the etiological level, this pathology also affects young mothers (it's called "mother's wrist" or mommy thumb"), mobile phone users ("textonite", "Blackberryte") or video game players ("Nintendoite"). Currently, the treatment is mainly conservative by splint and anti-inflammatory gel and/or corticosteroid infiltration. Howewer, these therapies have undesirable effects. The interest of this study is therefore to propose another therapy based on aromatherapy gel.