Salty and cold
Liver, stomach and kidney
1. To resolve phlegm and soften hardness; 2. To promote water metabolism
1. Goiter. Seaweed (Hai Zao ) is used with Laminaria (Kun Bu ) in the formula Haizao Yuhu Tang.2. Scrofula Seaweed (Haizao) is used with Prunella spike (Xia Ku Cao ), Scrophularia (Xuan Shen  ) and Tendrilled fritillary bulb (Chuanbei-mu) in the formula Neiziao lei li Wam.3.Edema of the foot or general edema. Seaweed (Haizao) is used with poria (Fu Ling ) and Alismatis rhizome (Ze Xie ).
This herb should not be combined with Licorice root (Gan Cao ), as they counteract each other.