Patients about to undergo an IPL laser treatment are usually asked to avoid self-tanners and excessive sun for 2 to 4 weeks prior to the procedure. They should discontinue the use of minocycline, tetracycline, doxycycline or Retin-A/Renova 3 days before each treatment, and may be asked to stop taking aspirin or ibuprofen a week before the procedure to help prevent bruising. Patients should also protect the treated areas with sunscreen between sessions.