Chinese belly button voodoo

Took kid #2 to the local hospital because of some stubborn tummy trouble, and came home with some Chinese medicine:
bellybutton_voodoo2bellybuttonherbs
Of course herbal belly button plugs are a thing:
bellybuttonplug
I hope we’re doing this right:
bellybutton_voodoo1 According to my Weixin pengyous, we should be OK. (And to be fair, China’s not the only place that comes up with novel health remedies.)