There are some key differences between fungal acne (also known as pityrosporum folliculitis) and bacterial acne. Here are some general guidelines to help differentiate between the two:

1. Appearance:

– Fungal Acne: Fungal acne tends to appear as uniform, monomorphic small red bumps or whiteheads without blackheads. These lesions can be itchy and often appear on the chest, back, and shoulders.

– Bacterial Acne: Bacterial acne typically presents with a mix of whiteheads, blackheads, pustules, and cysts. It is commonly found on the face, shoulders, and back.

2. Root Cause:

– Fungal Acne: Caused by an overgrowth of yeast (Malassezia) in hair follicles.

– Bacterial Acne: Caused by bacteria, particularly the bacteria Propionibacterium acnes.

3. Treatment:

– Fungal Acne: Antifungal treatments like ketoconazole or selenium sulfide-containing shampoos can be effective. Avoiding oils and fatty acids in skincare products can also help.

– Bacterial Acne: Topical treatments containing benzoyl peroxide, antibiotics, or retinoids are commonly used. In severe cases, oral antibiotics may be prescribed.

If you are unsure about your specific condition, it’s best to consult a dermatologist for a proper diagnosis and treatment plan.