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.
My scalp started hurting a few days ago and its really uncomfortable. Its around the crown of my head and its worse a little toward the right side, but anyhow, it hurts all over my scalp. Im not sure why... but I looked it up and apparently Im not crazy. But the thing that stood out the most to me was a few articles about substance P causing over-sensitivity.