Petroleum jelly is used as an ointment as an adjunct treatment for irritation, burns and dryness of the skin.It is virtually inert to the skin and does not enter any chemical reaction.It promotes the healing of lesions by its property not to let the water evaporate or to enter as in the case of an endo-nasal wound that is permanently wet and therefore difficult to heal or in the treatment of anepistaxis.It acts as a mechanical barrier against the sprouting of germs, and the presence of phenols, even in small amounts, acts as a bactericide.Finally, it is also part of the composition of the majority of lotions in cosmetics, used as an excipient.Because of its molecular properties, Vaseline is also used as a sunscreen that filters certain ultraviolet rays