Pressotherapy is a treatment using controlled air pressure to improve circulation and lymphatic drainage.it's often used to reduce swelling, cellulite, and aid recovery after surgery. Sessions last 30-45 minutes and are generally safe. - Pressotherapy is a treatment using controlled air pressure to improve circulation and lymphatic drainage.it's often used to reduce swelling, cellulite, and aid recovery after surgery. Sessions last 30-45 minutes and are generally safe. 35 mins