All of these factors can make the scalp irritated and sensitive, said Dr Wong. “In more severe cases it can lead to dermatitis or eczema,” she continued. Because the scalp has a high density of nerve endings, Dr Wong said that it doesn’t require much inflammation to result in significant discomfort. “This might be itching, hypersensitivity, burning or crawling sensations,” she told me. Interestingly, stress can often intensify these symptoms.