Common causes of itchy scalp: Stop dandruff, psoriasis, other reasons with the right shampoo

Hair care tips: Using a conditioner can help moisturise your scalp and reduce dryness (Image: Canva)

When your scalp itches, it can be difficult to think about anything else. You may feel that the itch will never stop, but relief is possible. Getting rid of the itch begins with finding out why your scalp itches. Your scalp could also feel dry, flaky, scaly, or have red patches.

Special shampoos for an itchy scalp can help relieve your symptoms, as they have ingredients that target different causes of itching, such as dandruff, psoriasis, or head lice. Finding out what is causing the itch, dry scalp symptoms will help you choose the right shampoo.

“An itchy, dry, and flaky scalp could be telling you that you need to do a better job of rinsing the shampoo from your hair. Leaving some shampoo on your scalp can irritate it. If you have an itchy scalp and a rash, you may have a condition called allergic contact dermatitis. This is common among people who dye their hair. Often the culprit is an ingredient in the dye called para-phenylenediamine (PPD), which is found in black hair dyes. You could also have an allergy to a shampoo, conditioner, or other product that touches your scalp. If that’s the case, you’ll likely have an itchy rash on your scalp and any other skin that the product touches,” suggests an article published by the American Academy of Dermatology on its website.

Also read | Soothe itchy scalp: Use mild shampoos, aloe vera, and more to prevent fungal infections, scratchy skin

Common causes of itchy scalp

• Dryness: A lack of moisture in the scalp can lead to flakiness and itching.

• Dandruff: Dandruff is a common scalp condition characterised by excessive flaking.

• Allergies: Allergies to certain hair products, dyes, or environmental factors can trigger an itchy scalp.

• Head lice: An itchy scalp is the most common symptom of head lice. If you suspect that head lice are causing the itch, ask someone to examine your scalp and hair for signs of these tiny bugs.

• Scabies: Scabies is caused by a tiny bug called the human itch mite. If these mites burrow into your scalp, your scalp can become quite itchy. It is the most common symptom of scabies, and it can be so intense that it keeps you awake at night.

• Fungal infections: Conditions like ringworm can cause itching and redness on the scalp.

• Psoriasis: Psoriasis is a chronic autoimmune condition that can cause red, scaly patches on the scalp.

• Eczema: Eczema is a skin condition that can cause dryness, redness, and itching.

Soothing shampoos for itchy scalp

If you're dealing with an itchy scalp, the right shampoo can make a significant difference. Look for shampoos that contain the following ingredients:

• Tea tree oil: This natural antiseptic has antifungal and anti-inflammatory properties that can help soothe an itchy scalp and reduce dandruff.
• Aloe vera: Aloe vera is known for its soothing and moisturising properties, making it ideal for dry and irritated scalps.
• Salicylic acid: This ingredient helps to exfoliate the scalp, removing dead skin cells and reducing dandruff.
• Ketoconazole: Ketoconazole is a popular antifungal medication that can help treat fungal infections of the scalp.
• Hydrocortisone: Hydrocortisone is a mild corticosteroid that can help reduce inflammation and itching.
• Zinc pyrithione: This ingredient is effective in treating dandruff and fungal infections.

• Avoid hot water: Hot water can strip the scalp of natural oils, leading to dryness and irritation.
• Gentle washing: Avoid scrubbing your scalp too vigorously, as this can further irritate it.
• Regular conditioning: Using a conditioner can help moisturise your scalp and reduce dryness.
• Limit styling products: Excessive use of hair styling products can irritate the scalp.
• See a dermatologist: If your itchy scalp persists or is accompanied by other symptoms, it's a good idea to consult with a dermatologist.

Disclaimer: This article, including health and fitness advice, only provides generic information. Don’t treat it as a substitute for qualified medical opinion. Always consult a specialist for specific health diagnosis.