No preparation or aftercare is required. An exception to this is the RenovaLase® (vaginal atrophy) treatment. In case of vaginal atrophy, pre-treatment is required, as it is not possible to absorb Er:YAG when the vagina’s water content is not optional. Therefore, the vaginal moisture has to be increased before treatment. This is done with an applied estrogen formulation with a preparation time of 2-4 weeks depending on the atrophy.