Callus

A thickening and hardening of the skin on protuberant parts of the feet that arises when long-term pressure and friction from footwear causes local blockage of qì and blood depriving the skin of nourishment. It is unclearly circumscribed and may range in color from white or yellow to brown.

Medicinal therapy: Treat by pairing away dead skin with a knife and applying Water Crystal Paste (水晶膏 shuǐ jīng gāo).

Acumoxatherapy: Treatment is based on ouch points (阿是穴 ā shì xué). Compare corn.