For stiff, sore or painful knuckles, try rubbing castor oil into the joints daily. Many people report that the pain is gone within a few days.
Other beneficial uses for castor oil include removing warts and making age spots fade away.
Castor oil is a folk remedy that has existed for ages. It has been used for thousands of years in India as a treatment for lower back pain, sciatica, constipation, dysentery, inflammatory bowel disease, bladder and vaginal infections, and asthma.
In the Canary Islands, mothers made poultices from the leaves of the castor plant to increase their breast-milk production and relieve inflammation of their mammary glands. They also applied the poultice to their abdomens to promote normal menstruation. Women also used it to treat other gynecological problems.
Topically, castor oil has also proven useful in treating a variety of skin conditions beyond warts and age spots. It has been shown to successfully treat keratosis, dermatosis, wounds, acne, ringworm, sebaceous cysts, itching and hair loss.
The Food and Drug Administration has deemed castor oil safe and effective for use as a stimulant laxative.
Some people are allergic to the oil. We recommend applying a small amount to the skin and watching for a reaction before beginning widespread use.