Hi,I have been doing electrolysis now for more than 25 years and the only real after effects are;slight redness(usually goes away in a few hours at most) very occasional bruising(usually more on the chin/neck area)which may appear a little bumpy but again goes in a day or two at most but usually gone the next day. To ensure you don't have any problems it is important to find someone with plenty of experience and have a thorough consultation discussing any concerns you have.Please feel reassured though that electrolysis is very effective and suitable for most people. Hope this helps.Sue