i woudl caly it first, if that dosent work then I would move onto a strong painit cleaner(megs deep crystal paint cleanser is otc and strong enogh), followed by another claying (yes the clayinig helps).
If that dosent work try some isopropal alchole. depending on how big the splatters are, put some on a q-tip and work it in.
If none of this works then as a last resort use mineral spirits. these things can be very potent, so if you dont need to use them dont, and if it you have to be carefull.