The sealing oil is used for burns, non-healing wounds and ulcers, abscesses, purulent inflammation of the mucous membranes of the mouth. They smeared the wounds from the bite of a healthy dog or cat, rashes on the body after a cold. The sealing oil - has a pronounced wound-healing effect (useful for gastritis, ulcers), antidepresantnym action (improves mood, reduces fatigue, it is useful to people abusing alcohol and smoking). In the presence of tumors seen photodynamic effect of hypericum oil. The composition of oil trapping is hypericin. The molecules absorb ultraviolet light, and its in tumor cells causes enhanced oxidation processes. As a result of taking St. John"s wort and subsequent exposure to the sun cancer cells proliferate more slowly in the body. In our country, the sealing oil has been used successfully to treat burns and wounds, including venous leg ulcers. The extract is prepared by mixing powdered herb St. John"s wort with a tenfold amount of vegetable oil and heated for 3 hours in a water bath. After that, the oil is drained and squeezed under the pressure of the grass. The resulting oil is filtered hood. Before the revolution, domestic manuals prepared by the sealing oil in sesame oil at a ratio of 1:6, and the grass first 12 hours insisted with 3 parts of alcohol, which then evaporates when heated. According to some sources, the sealing oil is obtained by extraction of dry plant material with hot oil. However, under the action of light breaks over 80% of hypericin in the dry plant. So now the fresh herb St. John"s wort right after grinding macerate vegetable oil. St. John"s wort oil is used in violation of the hepatobiliary system, reducing the filtration capacity of the kidneys, peripheral circulatory disorders with symptoms of stagnation and microcirculatory disorders. Successfully used in the treatment of vitiligo and pigmentation irregularities in the broadest sense.