There are more than 100,000 different species of fungi known to man, and they come in many and varied forms such as; molds, mildew, mushrooms, yeasts, etc. Parasitic Fungi feed on living plants, animals and decaying organic matter. They also cause diseases such as: athlete's foot, jock itch, shaving rash, nail infections, ringworm, dandruff, and selected respiratory infections. Candida albicans, a yeast, causes thrush infections and vaginal yeast infections, and is part of the diverse fungi family. Our pets can become infected with fungal skin diseases too. Thank goodness that tea tree oil is an effective natural anti fungal medicine! The great thing about it is that it can be easily diluted and applied, whatever the infection, because it is a valuable broad-spectrum anti-microbial substance.