So, if your scalp comes into contact with a product or ingredient that you're sensitive or allergic to, you can experience inflamed, itchy, sore red patches, says Massick. Picking these patches ...

When you pick at scabs, you can expose the delicate ... provider for topical treatments that can help. Any rash or sores on your scalp may scab over. They may become infected, too.

Important: Refrain from picking at acne, otherwise, it may take longer to heal and you risk developing acne scars. How to prevent scalp acne Insider's takeaway Acne commonly appears on the face ...