Tattoo removal these days are done with laser techniques which is painless. However it May require a lot of after care for a few days as skin in that area will be sensitive. The dos and donts will be given by your Doctor who will be doing the procedure. Please meet a dermatologist for further assistance and proper guidance. Try not to get it done at random spas or tattoo palours as it might harm your skin. Laser removal does not leave any scar behind unless you already had one or are prone to scarring/keloids. Proper after treatment care if followed prevents any damage to skin due to other causes such as sunlight . You might also need multiple sittings to get it removed depending on the type of tattoo extent etc. which can be assessed by your dermatologist.