When people visit patients in the hospital, they usually bring some fruits, thinking that it's harmless for any illness. In fact, this concept is very wrong. For example:
Cough (for those with a "heaty" constitution):
Should avoid lychee, longan, and orange.
Allergic constitution (such as eczema, measles, asthma, allergic rhinitis):
Should avoid banana, mango, lychee, longan, and pineapple.
Should avoid banana, orange, and pineapple.
Hemorrhoids:
Should avoid mango.
Skin diseases:
Should avoid sugarcane, mango, lychee, pineapple, and longan.
Peptic ulcer:
Should avoid banana.
Nephritis (uremia):
Should avoid banana.