Can I use a self-tanner AFTER laser hair removal?

I had laser hair removal on my lower legs two days ago. I still have irritation that looks like a rash and my skin feels sensitive, almost like a mix between a sunburn and a light bruise. My next treatment isn't until March, but I was advised not to use a self-tanning cream for two weeks after my procedure. I understand why I can't self-tan before the session due to laser targeting the pigment, but why can't I use a self tanning cream afterwards? Do I really have to wait two weeks?