How do you get rid of greasy hair due to meth use?

I smoked meth for one day and one day only. (Yes, I know it’s horrible and everything, I’ve heard it all. I only smoked it once and once only.) When I looked in the mirror, I found my hair to be unrealistically greasy. I’m generally very clean so this was definitely after the meth use. That day, I took more than 3 showers and the grease hadn’t managed to come out yet.