Dryness, one of the six pathogenic factors, is the consumption of body fluids. Chill, one of the six pathogenic factors, belongs to evil yin and can impair yang qi. Coming from outside, chill fights with defensive qi and blocks the outward flow of yang qi. Symptoms include chills, fever, and no perspiration.

1. Excessive evil wind may cause convul sions.
2. Excessive heat may cause blotches and swelling.
3. Excessive dryness may cause withering.
4. Excessive chill may cause dropsy.
5. Excessive dampness may cause diarthea.
Also learn more in the article Dryness.