Try oil of oregano and go on a yeast free, sugar free diet for awhile for folliculitis. This means reduced carbs as well. It was not easy but this is how mine got cured.
I have had recurrent folliculitis for over 10 years. I was an over user of antibiotics for years and didn't counter act the antibiotics I took with a pro-biotic, huge mistake!
I am eating better, however, on bad eating day or 2 - (when I eat candida growing foods, I pay for it), this time so bad that I am forced to get back on an antibiotic to clear it up again... sigh), but this time I am taking a STRONG, HIGH quality pro-biotic along with Garlic Extract pills, 4 drops of Oregano Oil (2 x day under tongue - push tongue down for 30 seconds and swallow), Oregano pills 2 x day, and I am increasing my water in take to 4 or 5 x 18 oz a day.... this is key to flush the system.
My main areas were on my scalp, chest and around my beard. lastly, I am using Coconut Oil to help fade/eliminate the scarring.
I know it seems like a lot, but 1 week into things, I am better, and off the antibiotics - hoping that they folliculitis will stay away by keeping my candida until control by eating the right foods and taking a strong pro-biotic.