Eucalyptus contact allergy.

Although most plants are harmless to the skin, allergic reactions to flora are occasionally seen in dermatology practice. Allergic contact dermatitis caused by plants can occur following airborne exposure to pollen, or after prolonged or repeated contact with the stem, leaves, or sap. Also, patients may react to organisms living on the plant, as the cure for allergic contact dermatitis is avoidance of the offending substance, the culprit allergen should be identified. We present a rare case of allergic contact dermatitis caused by the eucalyptus plant.