To prepare for an IPL treatment, patients are asked to skip self-tanners and excessive sun for at least 2 – 4 weeks before their treatment. You may be asked to stop using certain medications several days before your appointment. You may want to start taking aspirin or ibuprofen 5 – 7 days before your appointment to decrease your risk of bruising. You must also protect the treated areas with sunscreen since your skin will be extra sensitive.