The practice of Apitherapy uses bee products such as honey, pollen, propolis, royal jelly and bee venom to prevent or treat illness and promote healing. Bee Venom Therapy (BVT) may cause severe allergic reactions while bee pollen may build up resistance to allergens such as hay fever. Other bee products are anti-bacterial, anti-fungal, anti-oxidant and anti-inflammatory. Others may be used to boost the immune system and promote longevity and mental clarity. Honey has been used as a throat remedy, cough suppressant and wound healer.