Efficacy of ADW S-100 Ionized Water Nasal Spray in Decreasing Symptoms of Allergic Rhinitis

Inclusion Criteria: 1. Men and women ≥ 18 years old 2. Inform consent 3. Beneficiaries of a social security scheme 4. Having documented persistent or intermittent allergic rhinitis for at least 2 years 5. In the respiratory environment allergen battery, at least one prick-test positive at selection (diameter \>3mm compared to the negative control), or prick-test or specific IgE assay less than 6 months old demonstrating an allergic response appropriate 6. Agreeing not to take anti-allergic drug treatment during the duration of the study except in case of aggravation of the disease 7. Having a smartphone or a computer allowing access to the application of seizure To be eligible to be randomized, participants must have: 8. Used the nasal spray at least 2 times a day during the run-in, according to their answers on the application 9. A median VAS for the evaluation of the discomfort due to the symptoms of the selection at D-1 ≥ 50mm Non-inclusion Criteria: 1. Existence of links with any member of the study staff or the sponsor, or conflicts interests with the promoter 2. Known hypersensitivity or allergy to one of the components of the product tested 3. Contraindication to the use of a nasal spray 4. Respiratory pathology other than allergic rhinitis/rhino-conjunctivitis and asthma mild or moderate. People with severe asthma may be included if their asthma is controlled 5. Current treatment with systemic corticosteroids 6. Known pregnancy or positive urine pregnancy test at screening and/or at D0, or breastfeeding in progress 7. Participation in a clinical trial or other clinical investigation using a device medicine for the treatment or prevention of rhinitis or conjunctivitis