Leaving excess hair dye on your scalp and hair is one of the most common causes of itchy scalp after using hair dye. You may be able to stop the itchiness simply by washing your hair thoroughly. [2] X Expert Source Michelle BebbingtonProfessional Hair Stylist Expert Interview. 3 August 2021. Look for shampoos that are labeled “gentle,” “all-natural,” or “free of harsh chemicals. ” Harsh chemicals may react with the hair dye and make your scalp itchiness worse.
Even if you aren’t allergic to any ingredients in your hair dye, the harsh chemicals can still make your scalp itch. Using 2% hydrogen peroxide will help counteract the chemical reaction. Hydrogen peroxide may start to lighten your hair color if you leave it on too long. Therefore, it’s important that you rinse it out as soon as you’ve rubbed it into your scalp.
While an olive oil and lime compress doesn’t always help, it may help soothe your itchy skin and alleviate any skin tightness caused by the hair dye. [4] X Trustworthy Source DermNet NZ Online clinical resource website written and run by dermatologists providing evidence-based information about dermatology and skin health Go to source If you have any inflammation or redness along with the itchiness, you can place the compress in the refrigerator for a few minutes to cool it and help calm your skin.
Emollient moisturizes are generally made to help soothe common inflammatory skin conditions, such as eczema. Because the symptoms of an itchy scalp after using hair dye can be similar, these treatments tend to work well. Look for soothing ingredients like Argan oil, olive oil, Shea butter, and jojoba oil.
If your symptoms are severe or persistent, you may need to get a prescription-strength steroid cream from your doctor. If you have any pain or tenderness, a rash, or sores on your scalp after using hair dye, it’s likely that you’ve had an allergic reaction to an ingredient in the dye.
Many oral antihistamines cause drowsiness, so make sure you use them as directed. Depending on the severity of your reaction to the hair dye, your scalp may stop itching after 1 dose, or you may need to take several doses until the itching subsides.
In addition, make an appointment to see your doctor or an allergy specialist if your itchy scalp becomes inflamed or if you develop a rash.
PPD is primarily found in dark colored hair dyes. [10] X Trustworthy Source American Academy of Dermatology Professional organization made of over 20,000 certified dermatologists Go to source
If you’re getting your hair dyed at a salon, you can ask your stylist to perform this test as well.
Most at-home hair dyes should be left on for 10 to 45 minutes. Always check the instructions, though, to make sure you don’t leave the dye on for too long.