The seed from the chaulmoogra tree produces oil used to treat leprosy. This was before the time when we knew that leprosy was a bacterial disease. Therefore, now the treatment of leprosy has shifted to the use of multi-drug therapy (MDT) and after just one monthly dose, the people are no longer infectious.
This has been in use since the times of Charaka and Sushruta. While Charaka advocated the use of the decoction of the Hydnocarpus Wightiana seeds for vagina cleaning and paste for dispelling the foul smell through topical application, Sushruta advised the use of the oil of ripe fruits. This was to treat urinary diseases and for diabetic patients.
Treating leprosy with Hydnocarpus oil proves effective if the disease has not spread too much. You can decrease the size of the nodules, skin lesions, and an-aesthetic patches. You can give it under medical supervision, gradually increasing the dose. This will prevent any gastric irritation. To get better results, one can give intramuscular injections. One also gets good results with the sodium salts of the fatty acid.