Acute or chronic inflammation produced by substances contacting the skin and causing toxic (irritant) or allergic reactions.
Primary irritants include acids, alkalis, soap, detergents, acetone, etc.
Allergic contact dermatitis
Topical drugs, plants, shoes, clothing, metal compounds, dyes and cosmetics.
Sensitivity to latex in gloves is a particular problem for many health worker and sensitivity to latex condoms may preclude their use by some men.
Lesions may be acute vesicles or weeping subacute erythema, dry scaly with papules or chronic - lichenified (thickened) excoriated and hyper pigmented.
The lesions may take the shape of offending item - shoes, watch, gloves, etc but may be asymmetric or oddly shaped.
Management
• Identify and remove causative agent
• Drain large blisters but do not remove tops (roofs)
• Apply gauze or thin cloths dipped in water or normal saline
• Topical 1% hydrocortisone ointment for dry lesions and cream for wet lesions.