Lycopodium japonicum and Papaya belong to the category of drugs for relaxing tendons and dredging collaterals, which are suitable for treating a series of diseases caused by meridian obstruction, and pork knuckle tendon also has the function of dredging meridians. Lycopodium and papaya cooked in pig's feet can further play their role in dredging meridians, thus better treating a series of diseases caused by meridian obstruction.

Angelica sinensis is a blood-enriching drug, which has the function of enriching blood and is suitable for the treatment of a series of diseases caused by blood deficiency, while Astragalus membranaceus is a qi-invigorating drug, which has the function of invigorating qi. Angelica and Astragalus in pig's foot soup can tonify qi and blood, and have a good therapeutic effect on a series of diseases caused by deficiency of qi and blood.