Try to keep the area as dry as possible. Use a hair dryer after a shower. Get some special baby-bottom powder to help with this. Sunlight will help, but I understand if you don't take that option

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Acidophillus is a must, or at least plenty of yoghurt. Start using the moment you notice any rash or soreness, or along with antibiotic treatment as a routine. Antibiotics kill 'good' bacteria as well as the 'bad' ones - the acidopillus replaces the goodies to help fight infection.
Garlic, eaten often, will protect against diseases such as cholera, candida, typhus, staphyloccus, salmonella and dysentery. A decoction of the bulb, used diluted as a wash, is also effective as a preventative of infection during the nursing of patients suffering from these diseases.
Fungal diseases include Tinea, Thrush, Jock Itch and Ringworm, amongst others. The following herbs are useful in the treatment of fungal disorders: the oil from the roots of Angelica, applied externally; a tea made from the flowers of Calendula used as a wash or vaginal douche, or added to a bath; the juice from the bulb of Garlic, diluted and used as a wash, or Garlic eaten; the essential oil of Rose Scented Geranium, Cinnamon, Clove, Juniper, Lavender, Lemon, Thyme, Lemongrass, Mandarine, Tea Tree, Oregano, Palmarose, Rosewood, Spearmint, applied externally.
Pau d'arco tea (also called lapacho or taheebo) has antimicrobial properties and is used to treat intestinal and vaginal candidiasis (topically and internally).
If susceptible to Candida, avoid if possible using antibiotics. Avoid foods high in sugar or yeast, alcoholic beverages, cheeses, dried fruit or peanuts. Use Stevia to sweeten foods.
It's very important to keep up the treatment for several weeks after the condition has seemed to have cleared up. One single spore left, and it's back to Square One again.
Also important to use fresh towels each time, and to wash the towels, and use some tea-tree oil or other antifungal oil in the final rinse water. One little spore....
Also, try changing undies several times a day to keep things dry 'down there'.