How to help your thumb sucking child

[@babygreywatchingbabystuff]

Im 10 and have been sucking my thumb since a few months. Ive tried chewy necklaces, hot sauce on my thumb nail polish! And many others. At this point I don’t know what do do anymore:/

[@leahytp3466]

Do you still suck your thumb

[@em-cf9fm]

My child is 12 very close to 13 she sucks her finger (middle and index) for long periods and when she sleeps I’m so worried she might it be doing it until she is like 40!!! I’m scarred what do I do please help