Contact dermatitis is a condition in which there is an aggravated skin reaction characterized by redness, soreness, or inflammation after direct contact with a substance, more specifically, an allergen. Allergic dermatitis is usually confined to the area where the trigger actually touches the skin, whereas irritant dermatitis may be more widespread on the skin.
CAUSES OF CONTACT DERMATITIS : Red rashes, Blisters or wheals, Itchy, burning skin,
All forms of scalp dermatitis will lead to hair loss because of inflammatory response.