Red rash with itchiness in the area that came in contact with the allergen

• Sensitivity in the affected area
• Temperature increase locally due to skin inflammation
• Swelling due to skin inflammation with papules and blisters
• Possible exudation with liquid oozing
• Skin lesions can develop and appear stretch marks, exfoliation, scars even lichenification if the allergic skin problem turns chronic (chronic eczema).