I really want a tattoo and my ear surgery is a month and a half from now -- Would it affect my surgery if I get a tattoo now?

It depends on where you want your tattoo and how your recovery is. If you aren’t getting the tattoo on your ear or in the immediate area, and you don’t get an infection, then this won’t affect your surgery. However, it’s always best to ask your operating surgeon.

Hi. 
There is absolutely no problem with getting a tattoo done as long as it is not on the ear or behind the ear directly. 
Best
Dr Marco Carmona MD 

Otoplasty should not be effected by a tattoo unless it is on the ear or very close to it and leads to inflammation or infection. RegardsDr J