Intra-Nasal Mechanical Stimulation (INMEST) as a Potential Treatment Method for Sjogren's Syndrome (SS)

The purpose of the study is to investigate the effect and safety of the Walther System delivering INMEST (intranasal mechanical stimulation) on people with Sjogren\'s syndrome. A total of 30 subjects are planned to be enrolled and randomized to either use an active device or a sham device for the first 6 weeks. During the last 6 weeks all subjects will receive active treatment. The treatments are self-administered by the subject at home, three times a week and 10 minutes per nostril. Subjects will: * Use an active or sham device at home 3 times per week for six weeks. * All subjects will then get an active device for use another six weeks. * Visit the clinic every third week for measurements and checkups. * Keep a diary of the treatments and potential problems.