Medications that cause photosensitivity such as Roaccutane, tetracycline, doxycycline or herbal (St John’s Wort) etc are prohibited during SHR treatments as it can cause potential burns or pigmentation. SHR may only be permitted 6 months after stopping use of any photosensitising medications or as directed by your doctor. Clients must advise the SHR therapist of any current intake of medication to ensure safe SHR treatment.