A woman in Haiti told me of a medicine that helps kids to stop sucking their fingers.I may spell this wrong it’s lalwua and something else. Would you happen to know what it is and where to get it?

I do not know of any medicine in Haiti that would do that.  The woman may have told you about lalo (aloe) or a plant like aloe which they cut and slice and rub on the kid’s finger.  It’s bitter.  Haitians also try other things like covering the finger with a sock or smearing it with piman (hot pepper) or kaka poul (chicken feces) – imagine the handful of harmful bacteria a child could ingest with that last one.  They say that most kids eventually grow out of this behavior, but if he/she doesn’t and you are worried then talk to a doctor.

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words