Korean moms love to diagnose themselves and everybody else. They will often attempt to cure various diseases by consuming what other people might consider 'weeds' or 'deer shit'. My grandmother was once almost arrested in a National Forest for pulling baby ferns from a conservation area and stuffing the limp green carcasses into hefty garbage bags. Sort of like fern-napping. Many of them also believe that the expiration date on medication does not stand for anything; it's "still good".