This is a prospective randomized study lasting 6 months. Sixty SjD patients (pre- or post-menopausal) and with complaints of vaginal dryness will be included and randomized into two groups: 30 patients for the intervention group - vaginal fractional CO2 laser - and 30 patients for the comparator group - topical promestriene. Vaginal fractional CO2 laser applications will be performed once a month for three consecutive months. Patients in the group treated with promestriene will apply a 10 mg vaginal capsule at night for fifteen consecutive days and, after this period, one application every three days, until completing six months of treatment.