Aloe and calendula are commonly used in creams or ointments to treat allergic skin symptoms. Studies show that both plants have anti-inflammatory properties.

The extreme itching associated with poison ivy can be treated with several kinds of pastes.  Common ones include mixtures of clay and goldenseal or peppermint, salt, water, and clay.

Even in the field, the effects of poison ivy can be mitigated by quickly applying leaves of jewelweed, which often grows nearby.

Light therapy (or phototherapy) is a popular treatment option for eczema. Some skin care physicians may also recommend light therapy for contact dermatitis.  Light therapy usually involving exposing your skin to controlled amounts of sunlight. In some cases, it may include controlled exposure to artificial ultraviolet A or ultraviolet B light. Because there are some potential long-term effects to UV exposure, consult with your doctor before using phototherapy to treat skin allergies.