"Tea tree oil is a natural antifungal, antibacterial, antiviral, anti-infection oil. It is effective against nail fungus, ringworm, athlete's foot, dandruff, acne and many types of infestations including lice, mites and scabies.
Tea tree oil is not just soothing and disinfecting, it is capable of penetrating into the lower skin layers with its anti-inflammatory, disinfectant, analgesic (pain killing) and cicatrizant (wound-healing) qualities. It helps the skin to heal by encouraging the formation of scar tissue."
They sell it on the site but I got mine at walmart $8 for a 2 oz. bottle.
I would say this is an essential to have for emergency preparedness!