Before your PRF Under Eye Treatment, avoid blood-thinning medications, alcohol, and smoking for 48 hours to ensure the best results. After the treatment, avoid touching or massaging the treated area for at least 24 hours, and refrain from strenuous exercise and excessive sun exposure for a few days. Mild swelling or bruising may occur, but it typically resolves within a few days. For optimal results, a series of treatments may be recommended, spaced a few weeks apart.