It will prevent chafing and absorb sweat. Do not use on broken, damaged skin. It can result in an infection. Agents in this class help relieve the symptoms. They stop the generation of transmission of nerve impulses to the brain.
Antihistamines prevent the release of histamine, an endogenous mediator that worsens the itch.
Hydrocortisone products constrict the blood vessels and slow down the release of chemicals that worsen the itch. Chronic use of hydrocortisone can lead to thinning of skin, resulting in easy bruising. Retinoids reduce the plugging of the pore and may also have some antiinflammatory activity. However this is a relatively new treatment, used in severe cases. Handbook of Nonprescription Drugs.