Tattooing is a permanent procedure. There are many unique elements involved with a successful removal, ranging from color used, to the location of the tattoo.
Small areas of pigment can sometimes be successfully encouraged not to heal into the skin if the problem is dealt with during or soon after the initial procedure. This will normally result with a lightening of the color of the tattoo, but the success of the removal once again will depend on the size, color used, etc.
In general, technicians will refer a person seeking removal for existing unwanted pigment to a physician who provides tattoo removal services. No magic bullet exists, however, that removes pigment from the skin without a process that takes several visitations over an extended period of time.