Also yīn protrusion (1). A condition characterized by a tendency to erections of the penis of abnormally long duration (lasting hours or days) or swelling of the penis that gives the appearance of a partial erection. It is caused by liver channel damp-heat.
Medicinal therapy: Oral: Minor Bupleurum Decoction (小柴胡汤xiǎo chái hú tāng) plus coptis (Coptidis Rhizoma, 黄连huáng lián) and phellodendron (Phellodendri Cortex, 黄柏huáng bǎi). Alternatively, use Bupleurum Dampness-Overcoming Decoction (柴胡胜湿汤chái hú shèng shī tāng) or Gentian Liver-Draining Decoction (龙胆泻肝汤lóng dǎn xiè gān tāng). In severe cases, use Three-in-One Qì-Coordinating Decoction (三一承气汤sān yī chéng qì tāng). Topical: Make a decoction of impure mirabilite (Mirabilitum Non-Purum, 朴硝pò xiāo) and schizonepeta (Schizonepetae Herba, 荆芥jīng jiè), to wash and soak the affected area. If the swelling and protrusion is alleviated but a hard lump remains, treat with unripe tangerine peel (Citri Reticulatae Pericarpium Viride, 青皮qīng pí), combined with wind-dispersing medicinals. See also yīn protrusion. Compare rigid center.