What is the downtime, and what should I avoid before and after

There is no meaningful downtime. Mild redness, tenderness, or slight tingling may last a few hours; makeup and routine activity are generally fine the same day. Before treatment, avoid recent fillers or toxins in the target 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.