Tattoo Removal by Excision

In order to excise the tattoo you need enough skin laxity to close the wound.  Generally the forearm doesn't have enough extra skin to close a tatoo excision like yours in one setting.  You might need a staged excision and you will have a big long scar from doing it.

Excision is sometimes a reasonable option compared to laser. Excision always replaces the tattoo with a surgical scar, however. In some cases this may be acceptable if it avoids the multiple treatments needed with a laser. In larger tattoos it may not be possible to remove it all in one sitting without needing a skin graft which can definitely be unsightly. Serial excision, in which portions of the tattoo are removed with several weeks between excisions sometimes allows complete removal... more

you may not be interested in laser tattoo removal but nothing works as well. Unfortunately laser tattoo removal does require multiple monthly treatments and the expense, which usually is a few hundred dollars (more or less) per visit, adds up. One time procedures that are invasive will cause more scarring possibly.