Castor oil has a long-standing reputation for tasting bad and causing tremendous bodily upheaval. But you may not know that castor oil has many uses that don't involve your gastrointestinal tract. And in many instances, you don't have to swallow it. Always a plus.
Castor oil can reduce inflammation, which makes castor oil a soothing rub that can ease arthritis pain.
Its antimicrobial properties make it beneficial for the reduction of skin inflammation, stretch marks and sunburn. Rubbing castor oil into your skin is a great moisturizer that contains no commercial chemicals and can help erase wrinkles and fine lines. It can even lighten age spots.
"If you have an eye stye (an infected eyelash follicle) this can also be helped with castor oil."
Fungal infections such as ringworm can appear on many different parts of the body, on the scalp and on the nails. Many fungal infections will respond to castor oil.
http://www.altmedicinezone.com/natural-remedies/castor-oil-for-good-health-and-glowing-skin