Furthermore, the symptoms observed are reddish, inflamed spots that may be flat or elevated from the surrounding skin areas. The affected skin become extremely dry, itchy, and irritated. Constant scratching may thicken the skin, a condition known as lichenification. In severe cases, red rashes may appear, which at times, develop into fluid-filled blisters. After a few days, the blisters open and ooze out fluid, which crust over and heal.