Oh look, it's a lovely fish...oh no...sorry...it's a fish of blood.

Here is an extract taken from a Scarification website concerning the cutting aftercare:
After you are done with the soap and water, I recommend using Peroxide on the wound. This will help kill any bacteria, as well as irritate the cuts to help with scarring. Pour a bit of the Peroxide into your freshly washed cuts and let it sit for a couple minutes.
Let it sit for a couple of minutes? Jesus P. Christ! it's not a microwaveable meal.