While fungal infections in the armpit are rare, they can become quite severe given the right conditions. Your doctor will need to assess the extent of your condition to prescribe the most effective course of treatment action, but relatively mild fungal infections of the armpit are normally treated using a topical antifungal cream or ointment. Nystatin (Candidate for Candidiasis, Candida and Yeast Infections), tolnaftate (Tolnaftate Antifungal Powder - 45 G), imidazole and naftidine are the most commonly prescribed antifungal creams. Your treatment regimen will likely last about 3 weeks, and you'll need to apply ointment two or three times per day (or as directed). Make sure to follow the application directions closely and continue treatment as long as you're directed. Fungal infections can quickly recur, even when they appear to have cleared up, if you cease treatment too soon.
2. Use Systemic Antifungal Drugs
If your skin infection is more serious in nature or particularly widespread, you may need to take systemic drugs to cure it. These drugs are taken orally and will gradually reduce the spread of the infection on your skin. Should your skin infection include the appearance of white spots, you should be aware that these spots will probably remain on your skin even after the fungal infection has cleared. This is true of both topical and systemic antifungal drugs. Over time, the white spots will heal themselves and disappear. Permanent marks are rare.
3. Apply a Special Body Shampoo
You can prevent white spots and stop a fungal infection from getting a hold on your skin by washing daily with antifungal shampoo or fungal soap liquid (PediFix FungaSoapLiquid with Tea Tree oil, 6 oz.). Usable on both your hair and your body, antifungal shampoos are applied to affected areas and left to sit for a period of 15 to 30 minutes. They can also be used in tandem with topical or systemic medications to heal and cure infections that have already begun.