The advice I have read over the years following expert opinion is to never use solvents on the skin, it actually helps get epoxy into your system.
What was recommended is to scoop as much as possible off, then wash in warm soapy water.
Vinegar was safer than acetone for cleaning things.
Just found this on West System site.
Cleaning Up and Removing marine grade WEST SYSTEM Epoxy https://www.westsystem.com/instruction-2/epoxy-basics/clean-up-removing/
Removing Epoxy from Your Clothes
Removing epoxy resin alone
Resin should be removed with a rather aggressive solvent, such as one that is MIBK (methyl isobutyl ketone) based. Acetone or lacquer thinner also work but are extremely flammable.
Never use solvent directly on your skin. Remove clothing first before treating a spot of resin with solvent. Thoroughly wipe the spot with a paper towel dampened with solvent, then wash with hot, soapy water. Be advised, solvents can permanently change the color of some fabrics and melt others.
Removing epoxy hardener alone
Epoxy hardener is the more hazardous of the two epoxy components but is easier to remove. Hardener by itself is best cleaned of with hot, soapy water. Solvents are not effective on these spots. When removing hardener you must take necessary precautions to it keep off of your skin.
Using a solvent, even something as “mild” as vinegar, to remove hardener can actually drive it into your skin. Stick to soap and water.
Removing mixed epoxy resin and hardener
Believe me, if you allow mixed epoxy to cure, it will. The spot will eventually crack and then you’ll have a hole in your pants. When you get mixed epoxy on fabric, get at it immediately. First, place a piece of plywood behind the stained area, apply a dab of waterless skin cleanser to the spot, and scrape with a coin. Repeat four or five times. Then scrub with dish soap and a stiff fingernail brush. If there is still epoxy in the fabric, it will usually show up as a white spot. Repeat this procedure until the spot disappears, then rinse thoroughly. Be careful, as this approach can produce wear spots in some fabrics.