Dandruff / Itchy Scalp

Common symptoms include:

• Flakes on the scalp, hair, eyebrows, beard, or shoulders
• Persistent scalp itching
• Redness or irritation of the scalp
• Oily or scaly patches of skin

Flaking occurs when scalp skin cells shed too quickly, often due to inflammation or excess oil production.

Dandruff can look different from person to person, depending on the cause:

• Dry scalp dandruff

  Caused by lack of moisture, cold or dry weather, or harsh hair products. Flakes tend to be small and dry.

• Oily dandruff

  Results from excess oil (sebum) production, leading to greasy scalp buildup and larger yellow flakes.

• Fungal-related dandruff

  Caused by an overgrowth of Malassezia, a naturally occurring yeast that feeds on scalp oils and can trigger inflammation.

• Seborrheic dermatitis

  A chronic skin condition that causes greasy, flaky, itchy patches on oily areas like the scalp, face, ears, and chest.

• Dandruff linked to skin conditions

  Conditions such as psoriasis or eczema can cause scalp flaking and itching similar to dandruff.

Dandruff can be triggered by one or more of the following:

• Excess oil production on the scalp
• Dry or irritated skin
• Overgrowth of Malassezia yeast
• Sensitivity to hair care products
• Underlying skin conditions such as psoriasis or eczema

Although dandruff most commonly affects the scalp, it can also appear in other oil-producing areas of the body, including:

• Eyebrows and eyelids
• Beard and mustache area
• Sides of the nose
• Behind the ears
• Chest

These areas are prone to the same fungal and inflammatory triggers as the scalp.

Dandruff itself does not directly cause hair loss. However, chronic inflammation, excessive scratching, and poor scalp health can weaken hair follicles and contribute to shedding. Treating dandruff and reducing inflammation can help support overall scalp and hair health.

Dandruff vs. Dry Scalp

Dry scalp is usually linked to environmental factors or dehydration and often occurs alongside dry skin elsewhere on the body. Dandruff is typically limited to oily areas of the scalp and head.

Dandruff vs. Psoriasis

Psoriasis is a chronic autoimmune condition that causes thick, silvery scales and plaques. While it can affect the scalp, it often extends beyond the hairline and appears on elbows, knees, and other areas.

Seborrheic Dermatitis vs. Dandruff

Seborrheic dermatitis is a more severe inflammatory condition that can cause redness, swelling, and greasy flakes on multiple areas of the body. Dandruff is considered a milder, scalp-limited form.

Lice vs. Dandruff

Lice are insects that cling to hair shafts and cannot be brushed away easily. Dandruff flakes fall freely from the scalp and are not contagious.

No. Dandruff is not contagious and cannot be spread through contact.

Dandruff usually does not resolve without treatment. Mild cases may improve with regular washing, but persistent or moderate symptoms often require medicated shampoos or prescription treatments to control flaking and itching.

While dandruff can’t always be prevented, these habits may help reduce flare-ups:

• Wash hair regularly with an anti-dandruff shampoo
• Avoid harsh or irritating hair products
• Manage stress, which can worsen symptoms
• Keep the scalp clean and balanced

There is no permanent cure, but dandruff can be effectively controlled with ongoing treatment. Symptoms may return if treatment is stopped, especially for chronic conditions like seborrheic dermatitis.

Treatment depends on severity and cause. Options include OTC and prescription shampoos such as:

• Pyrithione zinc shampoos – Antibacterial and antifungal
• Coal tar shampoos – Slow skin cell turnover
• Salicylic acid shampoos – Help remove scale buildup
• Selenium sulfide shampoos – Reduce fungal growth
• Ketoconazole shampoos – Kill dandruff-causing fungus (OTC & prescription strengths)
• Fluocinolone shampoos – Reduce itching and inflammation (prescription only)
• Ciclopirox shampoos – Antifungal treatment for seborrheic dermatitis

Yes. Most cases can be managed at home using medicated shampoos. Prescription-strength treatments may be needed for persistent or severe symptoms. While natural remedies like tea tree oil are popular, they lack strong clinical evidence compared to FDA-approved treatments.

Untreated dandruff can worsen over time, leading to ongoing itching, flaking, irritation, and potential skin infections from scratching.

Yes. With a quick online assessment, a licensed medical provider can determine whether prescription treatment is right for you and ship medication directly to your home.

No. While medications can ease symptoms quickly, complete healing usually takes 1–3 weeks.