Oil content of the seed is quite rich and it is also associated with the presence of some organic sulphur which is responsible for its characteristic smell and the many medicinal activities. The seed oil is probably the best and the most significant medicinal product of the neem tree as a whole. On external application over the body, this is stimulative, worm destroying and highly transformative of the body constituents.
The ulcers, the pustules, the hard abscesses and the highly vitiated chronic wounds that usually accompany old veneral diseases are best treated by the seed oil. The leprotic wounds and the wounds that never heal up usually-even these can get very appreciably cured by a treatment with this oil. A general healing up of the tissues and the regeneration of the healthy tissues all around are both known to result invariably from an application of the oil.
If the pure oil is seen to be highly irritating and burning (as it often is) an admixture of any bland oil along with it will lessen this irritating effect of the oil without interfering in its beneficial action in any way. Neem seed oil has been seen to be very efficacious in all parasitic infections of the skin such as ring-worm, itches and eczema.
In case any tyoe of parasitic infection of the skin is even suspected, an application of this oil will act as highly preventive and also render the skin healthy by destroying the parasitic agents in all stages of their activity. If there is a suspicion that the infection in any given case has not remained superficial but has become slightly deep seated, a little massaging of the region concerned with this oil for a short duration of about 10 minutes will give the desired results.
A simple but effective hair tonic can be prepared out of the neem oil. Take one teaspoonful of neem oil, heat it and apply over the head after thoroughly washing and drying the latter. This is a sure cure of dandruff and also a good hair tonic and therefore a valuable addition to cosmeticequipments as such. An unclean head in often associated with an unclean skin. Dandruff and eczema usually go together. Neem oil is a good remedy for both.
Roughness and dryness of the head will disappear if it is washed with neem water (water in which neem leaves are boiled) for a few days.