Steroids (short for corticosteroids) are synthetic drugs that closely resemble cortisol, a hormone that your body produces naturally. Steroids work by decreasing inflammation and reducing the activity of the immune system.teroids (short for corticosteroids) are synthetic drugs that closely resemble cortisol, a hormone that your body produces naturally. Steroids work by decreasing inflammation and reducing the activity of the immune system.
A wide variety of chemicals have the potential to irritate the scalp and cause pain and sensitivity. Although virtually any chemical can potentially cause scalp sensitivity, harsh chemicals such as hair dye, permanent wave solution and hair straighteners are more likely to cause pain and sensitivity than shampoos, conditioners and other everyday hair products.
Other neurological conditions can also cause scalp pain. Occipital neuralgia causes sudden, severe, stabbing pain in the back of the head near the neck. It may be the result of past trauma in some instances. Trigeminal neuralgia causes similar sensations in the face and front half of the scalp. Tumors of the tissues that cover the brain, called meningiomas, are a rare cause of intermittent scalp and facial pain. Trauma and Hair Loss. A blow to the head can cause temporary scalp bruising and tenderness.