The Most Common Causes of Itchy Scalp and What You Can Do About It

Itchy Scalp

Having an itchy scalp is no less than a nightmare. It’s distracting, disruptive, and even embarrassing. The first step of getting rid of an itchy scalp is knowing what is causing it. Let’s take a closer look at five common reasons for an itchy scalp and discuss what you can do about it:

  • Reaction to a Hair Care Product

Having a reaction to a hair care product, such as a shampoo, conditioner, or hair dye, is pretty common, even if you don’t have a history of similar effects. This is known as contact dermatitis, which presents as rashes and intense itchiness. 

The most common culprit is para-phenylenediamine (PPD), a chemical found in black hair dye. The most obvious way to find relief is to stop using the product immediately. If you can’t seem to figure out which product is causing the reaction, consult with a dermatologist.

  • Head Lice

There is a common assumption that head lice are the result of poor hygiene. In reality, these tiny insects prefer to live in clean hair. Head lice pierce your scalp and suck blood. They attached themselves to individual hair strands, leading to itchiness. 

Constant scratching can cause small sores on the scalp, which is why getting rid of head lice is important. Look for an over-the-counter shampoo that has pyrethrin or permethrin. Most head lice shampoos have their own treatment protocol, so follow the instructions mentioned on the bottle. If the itching doesn’t stop, consult a board-certified dermatologist. 

Here’s a truth bomb: home remedies like olive oil, mayonnaise, and petroleum jelly don’t work, so it’s best not to waste your time.

  • Hives

Hives are red, raised, and itchy bumps that can appear anywhere in your body, such as your arms, legs, and scalp. 

While some remedies like lukewarm baths and cool compresses can provide relief, it is only temporary. If hives persist for more than six weeks, it is best to consult a dermatologist. They will prescribe topical creams and medicines for itchy scalp treatment and reduced inflammation. 

  • Psoriasis

Scalp psoriasis is a skin condition caused by:

  • Immune system dysfunction
  • Genetic factors
  • Environmental triggers, such as stress, weather, hormonal changes, and infections

You will see raised and reddish patches on your scalp, known as plaques. Most dermatologists recommend medicated shampoos that have coal tar or salicylic acid to keep the itchiness under control and prevent further worsening of symptoms. 

  • Atopic Dermatitis

Atopic dermatitis, or atopic eczema, is a chronic skin condition that can cause an itchy, dry, and scaly scalp. In severe cases, there could be oozing or crusting. 

Atopic dermatitis is a lifelong condition often caused by genetic predisposition. Environmental factors and certain hair factors can also trigger flare-ups. Here are some tips you can follow to reduce the itchiness caused by scalp eczema:

  • Use medicated shampoos
  • Moisturise your scalp
  • Take topical corticosteroids
  • Avoid triggers like allergens and chemicals
  • Avoid using harsh styling products

Always consult your dermatologist if your condition starts worsening. 

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