The cover-up is the main weapon of defense of the tattooed. Before moving on to more invasive methods, such attempts at removal laser, it is definitely the preferred choice of removing or hiding a tattoo. There are various ways of making a cover up and not all are practical.
The most drastic solution is to build a completely new tattoo over the first, but to be viable several factors must be considered such as the size and especially the color of the tattoo you want to cover.
The tattoo cover up, in fact, must be larger with stronger colors than the tattoo to be covered. The most difficult tattoos to cover are dark ones, while for those with light colors it is easier to obtain the desired effect using dark pigmentations.
The second solution consists in 'wrap the old design with a new tattoo’, which makes the view of the existing tattoo less obvious or it my use only parts that are slightly modified that can incorporated into the new design.