Castor oil is a compound that comes from the castor bean. According to TourEgypt.net, the medicinal use of castor oil dates back to ancient Egypt. Applying oil to a scar will not promote new skin growth or remove the scar completely. Scars form to heal areas of the skin that have injury due to illness or accident. At best, oil will soften the area and possibly smooth out some of the fibrous tissue. This effort may be enough to reduce the appearance of the scar and make it less noticeable. Castor oil is a good choice because it will not block skin pores and helps to break up excess oil produced by the body.
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Clean the area thoroughly with a mild soap. This is especially true if the scarring is from acne or another type of skin condition. Cleaning the area will help remove surface oils and debris that may clog pores. Do not worry about drying the area. The moisture from the water will add to the benefit of the oil.
Apply a small amount of castor oil to your fingertips. Less is better in most cases; just use enough to lightly coat your fingertips. Too much oil with only make skin slippery. The goal is to soften the scar tissue and help reduce any inflammation.
Massage the oil over the affected area for three or more minutes. Massaging the oil promotes circulation and healing. The pressure from your fingers will open pores and help to soften the skin. Rub softly so as not to irritate the area. Do not apply oil to any open skin on or around the scar. Keep the oil away from your eyes and nostrils.
Wash your hands thoroughly once completing the application. This will keep you from spreading the castor oil to other parts of your body or to your clothing.
Repeat the process once or twice daily. It may take time to notice any results.