While the treatment is non-invasive, the deep thermal energy may occasionally result in mild redness, slight swelling, or a tingling sensation. These are normal signs that the radiofrequency has successfully reached the dermis to trigger new collagen growth. During the first week, we suggest using a gentle moisturizer and staying well-hydrated. Most importantly, apply a broad-spectrum SPF 30 or higher daily to shield the skin as it begins its renewal process. In the first hours to days, you may notice temporary redness, mild swelling, or a feeling of tightness, especially along bony contours such as the jawline, cheekbones, and brow. These are not signs of burns or tissue damage but expected responses to deep thermal stimulation of collagen fibers and usually subside within 24–72 hours. To soothe the skin, we recommend using a gentle, pH-balanced cleanser, applying a hydrating moisturizer with ingredients like hyaluronic acid or ceramides, and using cool (not ice-cold) compresses if needed For exercise and sports, Dr. Kim advises avoiding strenuous activity, hot yoga, or heavy sweating for the first 48 hours to a few days to prevent irritation and aid the natural healing process. Activities involving excessive facial movement or heat should be postponed briefly to support collagen remodeling.