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.
Contents. 1  Scalp tenderness AND Pain: Causes of All Symptoms. 2  Scalp tenderness OR Pain: 6267 causes. 3  Scalp tenderness: Causes.  Scalp tenderness: 1  Introduction. Pain: 6262 causes.  Pain: 1  Introduction. Scalp tenderness and Pain and Nerve symptoms (6 causes)  Scalp tenderness and Pain and Sensations (6 causes)