Generally dandruff is thought as a hair problem, largely because the physical manifestation of this disease occurs in the hair. However, both its causes and symptoms occur in the skin overlying the skull: scalp.  Several studies, in which the emphasis is on the prevalence of skin diseases reveals that among the 18 most common dandruff is the third that disproportionately affects citizens, surpassed slightly by some types of acne. The figure shows that 2.82% of the population suffers. Its scientific term is “seborrheic dermatitis” an inflammation of the skin not the hair. Dandruff, then, is a visual manifestation of this disease. Causes of Dandruff   The cause or causes of dandruff have focused on several issues, says expert skin diseases Frank Parker. Although there is no single cause of seborrhea or been precisely identified all possible causes, science has advanced in this way: It may be occurs in areas with high concentrations of seborreas glands. Insufficient activity of the latter or, on the contrary, the overproduction can create scaly skin and hair brittle, or fat, respectively. Some causes that may favor the development and proliferation of dandruff are attributed, according to the expert, a growing fatigue, stress or digestive problems. Scientific analyzes reveal that pityrosporum, a small fungus may grow on the head, making it more persistent dermatitis. Process and demonstrations  Dandruff is a skin disease, it can be understood by knowing the cycles of the skin. The skin of the scalp, as well as around the body, is renewed every 20 to 30 days. This is a natural process that explains the origin of dandruff in the acceleration of this process, accompanied by an imbalance of the microbial flora, which leads to dandruff, which causes excessive flaking of the scalp, associated with frequency irritations. When this happens, there is the condition called dandruff which is a real cosmetic problem and requires urgent treatment of some kind. Dandruff occurs not only in the head, but other hairy areas can occupy about half of the face, upper lip, eyebrows, ear canals, armpits and groin, manifested as inflammatory scaly plaques, yellow and greasy. How to remove dandruff  The basis for the treatment of dandruff shampoos is antiseborrea utilization. Although it is difficult to prevent and no treatments that eliminate some of the causes, who have the disease or are presented that are some of the symptoms, albeit mild, can be treated as having your hair dandruff. In this sense, shampoos should contain the following: salicylic acid, tar, sulfur and selenium sulfide. These should be used daily, as recommended by dermatologists. In some cases, seborrhea inflammation has a dimension such that stronger treatments are required, under the supervision of a specialist. Topics that are between 1% and 2.5% with hydrocortisone, for example, it is one of the treatments reported by the Treaty of Internal Medicine, Cecil, to which reference was made.  Whatever the type of dandruff and the origin of this, solutions or precautions can also come fromnatural medicine, especially when it is mild. In any case, you should consult with a medical specialist. Diet  Some doctors advised for diets rich in special vitamins of group B and beta carotene, which can help stabilize the scalp. Ingestion of seafood, meat, peanuts and sunflower seeds can contribute, in the same sense, to counteract the absence of zinc, one of the generators of the disease. Also essential fatty acids (found in oily fish like salmon, sardines, herring and trout) are very useful to avoid hair dryness.