What I did by that time was to clean bb... pump my milk out and feed him/her afterwards...
Don't scare coz it happens when you have too much milk inside your breast.... maybe you can think of pump out some frist before you feed her la.
Yes, he/she will be very angry coz if you were he/she, something inside her nose... so, let him/her to cool down and feed him/her by bottle this time , the breastfeed by next time again...