Paranoid about drug residue

Basically I was outside, noticed a tiny baggie on the sidewalk, and I reached down to pick it up and noticed there was white residue inside it. I threw it in the dumpster and ran inside to wash my hands, I made sure that specific hand didn’t touch ANYTHING. But now I’m paranoid of residue being on my hand and somehow getting in my body, I’m afraid to touch anything with that hand. Washing my hands got rid of it, right???