Garlic has antibacterial , antifungal, antiviral, and antiseptic properties from allicin. Allicin helps to kill the bacteria causing acne.
It also helps to reduce swelling and inflammation, and improve blood circulation. These beneficial effects allow the skin to receive more nutrients.
Although there are no studies that examine the effects of garlic on ringworm, it has proven effective for other types of fungi, including Candida, Torulopsis, Trichophyton, and Cryptococcus.
To use garlic as a treatment, make a paste of crushed garlic cloves by blending the garlic with some olive or coconut oil.