Irritation and allergic reactions.
Wool, chemicals, soaps and other substances can irritate the skin and cause rashes and itching. Sometimes the substance, such as poison ivy or cosmetics, causes an allergic reaction. Also, reactions to certain drugs, such as narcotic pain medications (opioids) can cause itchy skin.
What causes an itch?
An itching sensation of the skin arises due to stimulation of pruriceptors—itch-sensing nerve endings—by mechanical, thermal or chemical mediators. These include: Chemicals for immune response (histamines) and pain relief (opiods)
How can you stop itching?
To help soothe itchy skin, dermatologists recommend the following tips:
- Apply a cold, wet cloth or ice pack to the skin that itches. ...
- Take an oatmeal bath. ...
- Moisturize your skin. ...
- Apply topical anesthetics that contain pramoxine.
- Apply cooling agents, such as menthol or calamine.
