This one was tough for us, too! Ours was 8 and in 2nd grade but she has been thumb-free for 6 months now!!! What we learned is SHE HAS TO BUY IN or your efforts will fail. This took about 6 weeks but she doesn't even WANT to suck her thumb now and doesn't understand now why she ever did! Here's our approach:
1. Step One: we helped her see how often she sucked her thumb to show HER there was a problem. Prior to that it was OUR problem as she was only being unintentionally comforted. She learned when and why she was doing it (sadness, fear, boredom, etc.) WE DIDN'T NAG HER OR PUT HER DOWN. We'd stop what we were doing and talk gently with her, hug her and help her see why she was using her thumb and most importantly re-direct her. SHE didn't really realize she was doing it so often before then!
2. Step two. Education. Seriously! We showed her pics of little girls and adults who had sucked their fingers/thumbs with pics from the internet. When we encountered people in daily life we quietly and gently showed her what could happen to her mouth. We took her to the Dentist and they explained the dental side. She got to buy new toothbrushes, pastes, colorless or shimmery lip gloss to bring attention to her pretty mouth.
3. Step Three. Buy In! After we'd taken about two whole weeks preparing her, we took her to the drug store and bought the horrible tasting nail polish and began FOR THE 1ST TIME helping her stop. For the 1st few days we used the polish only at night and weaned her off her thumb. IF SHE WAS REALLY HURT OR SAD we gave her a minute or so to suck her thumb, then sat with her, comforting her and would tell her it was time to stop. THEN we painted her thumb.
At first she argued but within a few days, with reminders of how lovely her new teeth would be when they came in straight and how much healthier she'd be (reduced colds, etc) she began having fewer times when she needed it during the day.
Bedtimes were tough. Let's be real! She initally cried and it took a little longer to find a new sleep routine but we found one that worked for her. We just learned that meant a little more attention at bedtime and comforting!And when she felt she had to suck her thumb she hugged us or a stuffed animal. At times she really was angry, cried but this slowly went away with alot of caring and patience on our part.(REMEMBERE, IN HER CASE SHE'D BEEN DOING THIS FOR 8 YEARS! IT WAS HARD FOR HER)
At first we let her suck her thumb for a few minutes before we painted on the yucky stuff! That time diminished and after a week, she told us she didn't need her "thumb-sucking time!"
Step Four. Finally there had been enough prep work done and we were able to really hit it hard! We did the old reward thing! She chose something BIG to work toward and created a "reward calendar" and we kept it in her room. Each day she didn't suck her thumb she got a sticker. She earned a small gift every week. Then after 2 months of NOT sucking her thumb at all, she earned her GRAND PRIZE! SHE LOVED putting the stickers on the poster! Occasionally she failed and didn't get her sticker but was sooooo ready to try harder the next day!
It was worth the $$ and time spent! She chose to work for something she really wanted and now 6 months later, her thumb-sucking is just a memory!
She constantly tells us how proud she is of herself for achieving SUCH a big goal! Her Dentist is even getting involved and we are going there this week for THEM too give her a special reward for being thumb-free for 6 months!
The bottom line is this is like smoking or losing weight for us. IT IS TOUGH for them. Yelling, nagging and negativism will only make this a tough process for everyone!(Sadly, we tried "forcing" her and got NO WHERE! Give the positive way a try! Be prepared for lots of cuddling and some tears but it will get better. It's ALOT of work but WELL worth it!Promise! L.