What if your scalp itches even after washing it?

First, it could be seborrheic dermatitis.
Symptoms include scalp inflammation and excessive dandruff, which can also be accompanied by hair loss. Seborrheic dermatitis frequently occurs in individuals with oily skin and excessive sebum production. Because the scalp is much thinner than the face and contains a high concentration of nerves, it is a vulnerable area susceptible to irritation. Since it can be easily damaged by even slight irritation, it is best to refrain from scratching as much as possible, even if the itching is severe. Scalp inflammation can also occur when scalp temperature rises significantly, or on dry days with large daily temperature fluctuations.

It could be a second case of scalp psoriasis.
The condition of a cracked scalp is called scalp psoriasis. Symptoms include bleeding, itching, and stinging. This condition occurs when the scalp becomes dry. Those with dry scalp may be people who wash their hair frequently. While maintaining cleanliness is important, washing your hair too often can lead to a dry scalp.

The third cause could be dandruff.
If your scalp frequently feels itchy, you need to check to see if any flakes are visible. These are dead skin cells shedding from the scalp and are known as dandruff. Various causes are associated with dandruff, including hormonal imbalances, excessive proliferation of scalp cells, gastrointestinal disorders, constipation, nutritional imbalances, and stress.

The fourth cause is the shampoo. Chemicals in shampoo can cause itching. It can be triggered if the cleansing power is too strong or if the shampoo does not suit your scalp type. It would be best to switch to a shampoo with mild, low-irritation ingredients.


Source https://post.naver.com/viewer/postView.naver?volumeNo=32250246&memberNo=54067778