What should I avoid before and after the procedure

Before: avoid recent dermal filler or botulinum toxin in the treatment area (timing is planned by your surgeon), retinoid creams for about a week, and blood-thinning medications or supplements (aspirin, fish oil, vitamin E, ibuprofen) per your surgeon's instructions. After: avoid alcohol and smoking for 2–3 days, sauna and hot baths for about a week, and vigorous exercise while the area is still tender. Mild surface flaking during regeneration should not be peeled.