What is the religiously prescribed period for a wife to wait for her husband, and is it permissible to perform a purification operation (circumcision) to lose sensation due to the husband's absence?

The period during which a husband may not be absent from his wife without her permission is six months. Masturbation is forbidden, and you must be patient and divert your mind from thoughts of desire by focusing on what is beneficial. As for female circumcision, it is an honor and a benefit for moderating desire. You are permitted to perform it without exaggeration in cutting, and it is permissible to expose the 'awrah to a female doctor or circumciser in this situation.