Occasionally some people may experience symptoms such as slight swelling, redness, itching or tenderness in the treated area but these reactions are quite normal and usually disappear within one to six days.
However, if the lips are being treated, initial swelling may last longer for up to a week and they may look slightly uneven. This means that the result directly after the treatment should not be looked upon as the final result. It is very important to massage the treated areas for up to seven days afterwards to ensure an even appearance.