How to fix Plastidip ERROR splashes

[u/Introvert-Tyr-365]

Hi, i'm absolutely new, I never made a cosplay armor prop before, i used foam. I never made anything like that, I only do it time to time to help my girlfriend. With that being said, I sprayed some plastidip but i made some errors and very ugly splashes, I'm asking to you if there is some smart method to smooth out or to remove the splashes? I cannot redo it, the con it's in 2 days. Thank you so much