Fingerstall for correcting allotriophagia and promoting nail growth and preparation method thereof

The invention relates to the technical field of fingerstalls, in particular to a fingerstall for correcting allotriophagia and promoting fingernail growth and a preparation method thereof, which utilize the characteristic that children who suck fingers or bite fingernails like to bite the fingerstall, adopt a fingerstall form, and respectively smear different liquid medicines on the inner layer and the outer layer of the fingerstall to play different effects. The outer-layer medicine adopts andrographolide, gentiopicroside and denatonium benzoate as bitterness agents, the outer-layer medicine is insoluble in water, the fingerstall is not afraid of washing after being worn, and the concave points of the fingerstall can store part of the outer-layer medicine, so that the bitterness and the antibacterial performance of the finger stall can be kept for a long time; allantoin and vitamin B in the inner-layer medicine support cell metabolism and promote the growth of damaged nails, when children gnaw the nail, nutr