Traditional Use References Fungal Infections. Warts and Corns. Athletes Foot. Calluses. Ringworm. Plantar Warts. Incessant itching. Tinea. THUJA (Arborvitae) – Latin for ‘Tree of Life’ – is an evergreen pine native to the mountainous slopes of eastern Canada.The Ojibwe Indians used the essential oil for the treatment of warts and fungal skin conditions, and also as a cleanser, disinfectant and insecticide. ST JOHNS WORT / HYPERICUM- especially good for itching and irritation to the nerve endings.