There can be bruising and if it occurs after ThermiTight performed for facial sagging or neck looseness, this bruising can take more than one week to disappear but concealer can be used very soon after the procedure. Swelling can be mild for several days but it is not realistic to expect no swelling. The heat generated from the radiofrequency causes temporary swelling. Some patients need more heat because their skin has more sundamage, less elasticity and more sagging. I have seen clinically that more heat induces more days of swelling and the most aggressive procedure can cause the swelling to be up to two weeks, but this is the minority of cases. Don't schedule this treatment if you need to look presentable less than a week or two after ThermiTight, just in case you have this prolonged swelling.