Dandruff is the shedding of flaky, white-to-yellow pieces of skin from the scalp. You may notice white dandruff flakes on your shoulders or collar area. Dandruff is the result of a common skin condition called seborrheic dermatitis, which may be seen in people with eczema, psoriasis, fungus infections, or overactive oil glands, among other conditions.
Dandruff is not contagious, but it can be hard to treat. It is more likely to affect men than women. Itchiness due to dandruff often causes irritability and embarrassment. Dandruff does make your scalp itchy and flaky. That white flake which you scratch off from the scalp is nothing but itchy dead skin.
Dandruff, if not treated at the right time, can cause hair loss and scalp inflammation. If your skin is suffering from acne or oily skin, the condition can worsen because of the flakes.
Applying hair oil on a scalp, which is already infected with dandruff intensifies the process of hair fall. When hair oil remains on the hair for a long time, is loses it shine and turns dull. So, it is important to avoid applying hair oil on your scalp if you are struggling with dandruff.