Help!! Burnt hair smell!!

A

So I curled my hair ( for the very first time) tonight using my straightner. I have never experienced burnt hair damage before because usually I do a quick 2 swipes and that hair piece is done. Well when we got home I couldn't stand the burnt smell any longer that I decided to wash my hair before bed. I washed this B!+ch 3 times and conditioned once!!! My hair literally smells like Booty!!!

I have my hair up in a mask of coconut oil and leaving it on for like 30 min before I jump back in the shower for some more washes. Any ladies ever experience this and how did you get it out? Ps. I have to get it out asap, we're heading to San Antonio to visit my husbands family for the weekend and don't want to smell like bootyhole! Help!!! and thank you SOO much in advance!!!