Oil of Oregano

Oil of Oregano has powerful anti-yeast, anti-bacterial, and anti-viral properties, as well as intestinal cleansing benefits. It is often used with intestinal Candida/yeast, and as a first aid to help treat food poisoning. Oregano Oil has also been found to have powerful antioxidant effects.
Benefits of Oil of Oregano
Antifungal
Antimicrobial Effects
Antibacterial
Inhibits Yeast Growth
Antioxidant

According to North American Herb & Spice, to remedy different conditions effectively follow these suggested doses:
Internal
Upper Respiratory tract conditions: Take 2 or 3 drops sublingually three times a day. Also take 3 to 5 drops twice a day in juice or water.
Lower lung or pnuematic conditions: Take 3 to 5 drops sublingually three times a day. Take also 3 to 5 drops three times a day in juice or water. Also, at night rub a few drops onto the chest and on the soles of the feet.
Asthma: Take 3 to 5 drops twice daily under the tongue. Also take 2 or 3 Oregamax wild oregano capsules day.
Inhalent allergies: Take 2 or 3 drops as often as necessary sublingually. Also take 2 Oregamax capsules twice daily.
Low blood pressure: Take 2 or 3 drops twice daily sublingually (under the tongue). Also take 3 Oregamax caps twice daily.
Stomach disorders: Take 2-5 drops twice a day in juice or water. Also, take 3 Oregamax capsules twice daily.
Irritable Bowel Syndrome (IBS): Take 2 or 3 drops twice a day sublingually plus 3 to 5 drops twice a day in juice or water. Take 3 Oregamax caps twice a day.
Diarrhea/constipation: Take 5 drops 3 times a day in juice or water. Also take 3 drops under the tongue twice or more often daily.
Bladder disorders: Take 5 drops three times a day in juice or water plus 2 drops three times a day sublingually.
Psoriasis/Eczema: Take 10 or more drops three times a day in juice or water.
External Toothaches/oral lesions: Apply directly to involved region as often as needed.
Athlete's foot/ringworm: Apply directly to involved areas twice a day.
Seborrhea: Apply to involved areas gently. Take internally, 5 drops twice a day.
Sunburn: Rub on involved region.
Rash or hives: Rub on involved region twice or more daily.
Psoriasis or eczema: Use internally primarily for adults. In children, apply small amount to the lesions once or twice a day.
Warts: Saturate a cotton ball and apply to wart with paper tape. Repeat twice daily. Also, take the oil internally, 5 or more drops twice a day.