Can Sha vs Comfrey

Unusual TCM remedy using silkworm feces for joint pain and cramping.

Comfrey has been used for over 2,000 years for wound and bone healing, earning its name "knitbone." It contains allantoin, which stimulates cell proliferation and tissue repair. Due to pyrrolizidine alkaloid content, modern use is restricted to topical application only. It remains one of the most effective topical herbs for musculoskeletal injuries.

Chlorophyll, Amino acids, Vitamins, Flavonoids

Allantoin, Rosmarinic acid, Pyrrolizidine alkaloids (toxic), Mucilage, Tannins

Joint pain from dampness, Muscle cramping, Itchy skin rashes, Abdominal pain

Bone fracture healing, Wound repair, Sprain treatment, Bruise treatment, Joint pain relief

Anti-rheumatic research, Anti-pruritic studies

Sprains and strains (topical), Back pain (topical), Osteoarthritis (topical), Bruises, Muscle pain

5-15g wrapped in cloth and decocted

Topical cream/ointment applied 2-3 times daily for up to 6 weeks

Pregnancy

Internal use (hepatotoxic PAs), Open wounds, Pregnancy, Liver disease, Prolonged topical use

Mild digestive upset

Contact dermatitis (rare), Skin irritation, LIVER TOXICITY AND CANCER RISK IF INGESTED