Wu Collection, Middle Volume Radical: Sickness (bìng) 瘋 Kangxi strokes: 14 Page 776, Entry 12 According to the Collection of Rhymes (Jiyun), pronounced feng. A disease involving mental derangement. According to the Medical Treatises (Fangshu), hemicrania on the right side is attributed to phlegm and heat, while on the left side it is attributed to wind and blood.