I have had a couple tiny warts on the inside of my nose for several years. I have used either castor oil and coconut oil regularly. (It seems to keep them small and without pain.) However, recently, I had a blood test that revealed my Vitamin C level was virtually non-existent, so I began taking 1000 mg morning and night of ascorbic acid Over the past few weeks, I have felt the warts diminishing. I'll be keeping up this regimen!