My 18 month son has been a STRONG middle finger sucker since 9 months old. My wife and I didn't really think much of it at first. Especially given that his doctor said that he should eventually grow out of it. But it only got worst and worst given that his fingers became his source of comfort. It got so bad that his skin on this middle finger start to blister and he didn't allow any time to heal. This is when I told my wife that we NEED to take action now! She was reluctant and didn't push forward as much as I wanted to, but this was getting out of hand. So I started to do my research online for products to support. I came across the nail biting polish, but I didn't want to make him throw-up with that poison (lol). So I just decided to try this product out by TGaurd ( THE BEST DECISION I EVER MADE!!!!) Once we received it and placed it on, he had a FIT! Cried for an hour straight due to him not being able to resort to sucking his fingers. As the manual says, ***PARENTS...SAY STRONG****, and boy, they weren't lying. To all parents, the success of this product is really in your hands. You have to stay consistent and show resilience every time you place that band on that wrist. My son was very stubborn when it came to his fingers and my wife didn't think it would work, but with persistence and drive, I was wasn't going to allow us to fail. I only took the guard off when he ate and during baths, other than that, I placed the guard back on. The first three days were the roughest. It was literally as if he was in rehab. He cried, screamed, became frustrated, and even throw-up from crying so badly. However, I was determined not to take it off. I had to remain strong for his success. FOCUS ON THE BIGGER PICTURE!!!. After about 10 days of consistency, we started to realize that when we took the guard off, he didn't realize it was there anymore. He didn't have a relapse or resort back to sucking his fingers anymore. Only when he heard us talking about it and he tries to be funny and place them back, but he quickly removed them. After about 4 more days with the guard, he was BROKEN!!! He never, and I repeat, NEVER HAS RESORTED BACK TO HIS FINGERS!!! THANK YOU T-GUARD!.....also........please use the bands wisely, they do give you a fair amount, but I did experience trail and error with a few. So use wisely!