I touched wet cement with bare hands. i washed them briefly. only realising 2h later how bad it was i washed them for 20mins with water and vinegar.

Hand Washing: Do you wash hands excessively or have other rituals you do to lower fear that something bad will happen? If so, you MAY have a form of Obsessive Compulsive Disorder. A clinical psychologist who specializes in OCD can be of help if that is the case. Peace and good health.

No worries: Handling wet cement, once, twice, or three times in a lifetime, should cause no problems. Twenty minutes of handwashing is a lot, and can dry out the hands... which may mean needing some skin moisturizing cream on them for a couple of days.