Well you should use this very good moisturizing cream that is known as H2ocean tattoo aftercare cream. Its a good moisturizing cream. You'll get it for around $8. Apart from that, I'm sure you'd love the following website which will tell you how to take care of the skin after getting a tattoo. Here you go:
www.eurotattoo.co.nz
www.eurotattoo.co.nz