So far so good with getting rid of thumb sucking
I would give this a 5 but we haven't been using it long enough to see that it truly works all the way. We've only brushed my daughters nails with this a couple times. She's a thumb sucker since birth and sucks her thumb to put herself to sleep but also to comfort herself during the day. She's almost 4 now and the dentist said it's time to get her to stop before she does anymore damage to her teeth. So the first time she used it she accidentally put her finger near her mouth and instantly started gagging and spitting. I wondered how bad it tasted but wasn't willing to try it out myself. That instance there proved that it tasted really bad! That day she didn't suck her thumb at all. So I would say it works but I don't know how long it lasts on the fingernails to know how often to apply it. I'm guessing you need to apply it daily to get them to stop and to keep the bad taste up to deter them from thumbsucking. We'll keep it up but so far it's working well!
texasjewel
Spring, TX