Nothing can be more annoying, and sometimes embarrassing, than an itchy scalp. SkinSight.com, a site whose information is created, edited and reviewed by physicians, states that an itchy scalp is a common problem in adults. When nothing is visible, chances are it is a mild case of dandruff. Knowing all possible causes enables a person to seek proper treatment.
Contact Dermatitis
Contact dermatitis is a common cause of itch, Dr. Michael Araco of Family Resource.com explains. Its most common causes include a new shampoo, hair dye, soap or hair product. The primary treatment is to find the irritant responsible and discontinuing its use. If the itching is severe, a doctor may prescribe a steroid medication. Should an infection develop because of scratching, antibiotics may be necessary.
Dandruff
Dandruff usually affects the whole scalp and is the most common cause of an itchy rash on the scalp of adults, according to SkinSight.com. Those with dandruff typically have patches of redness and scaling. In some cases, this condition also affects the ear area.
Psoriasis
Psoriasis, another common skin condition that causes a red rash on the scalp, also results in a thickening of the skin. Dr. Michael Araco states that up to 4 percent of the American population suffers from this condition, and while itching can occur, it is not a typical symptom. Aside from the head, a person's elbows, knees and lower back may become infected. Treatment options include topical creams and steroids.
Folliculitis
Folliculitis is a bacterial infection of the hair opening, or follicle. It causes one or more pimples or scabs on the scalp or in the beard. This condition is associated with small sores or pimples in the nostrils or other body areas, according to SkinSight.com.
Head Lice
Head lice is an extremely contagious condition, and is a common cause of itchy scalp among children. The most common mode of transmission is head-to-head contact, and because the lice prefer to live behind the ears and the back of the neck, this is where most of the itching occurs. Treatment involves washing the hair of everyone infected with a medicated shampoo made specifically for lice. It also is necessary to wash all clothing, bed linens and hair accessories.
Stress
Stress can cause scalp itch. From work to financial problems to relationship problems, the normal pressures of life can cause an itchy head. No miracle medication exists. It is simply a matter of using relaxation techniques or making lifestyle changes.
