Can I take Sh熟地黄汤 during lactation?
Generally, it is acceptable for breastfeeding women to consume Sh熟地黄汤 (Rehmannia glutinosa soup) in moderation, but suitability depends on individual constitution and medical condition. If in doubt, consulting a physician in advance is recommended. Detailed analysis is as follows:

Sh熟地黄汤 primarily functions to nourish yin, enrich blood, and replenish essence and marrow. It is suitable for weakness symptoms caused by deficiency of qi and blood or insufficiency of liver and kidney following childbirth. If a breastfeeding woman experiences symptoms such as dizziness, soreness and weakness of the waist and knees, or fatigue, taking Sh熟地黄汤 in appropriate amounts under medical guidance may help restore physical condition. Its nourishing effects may improve physical weakness and potentially positively influence the quality of breast milk.
However, Sh熟地黄 (Rehmannia glutinosa) is rich and greasy in nature, and excessive consumption may burden the spleen and stomach, affecting digestion or milk production. If a breastfeeding woman suffers from internal accumulation of damp-heat or weakness of the spleen and stomach, she should not consume Sh熟地黄汤. Its rich and greasy nature might exacerbate internal dampness, manifesting as thick greasy tongue coating, abdominal distension, or loss of appetite.
Certain women may be allergic to Rehmannia glutinosa, and symptoms such as skin rashes or itching might occur after consumption. For first-time users or those unsure of their sensitivity, a small test dose is recommended initially to monitor for any allergic reaction.