What should you know about dark fungal spots on skin?

A fungal rash can produce colour change, scaling, itch, or a spreading edge, while pigment may remain after the active irritation settles. Follicle inflammation, blocked pores, and other rashes can also leave dark marks. The body site, surface texture, symptoms, and speed of spread help distinguish these possibilities.

Pimple-like bumps may occur with [Acne](/conditions/acne/), [Folliculitis](/conditions/folliculitis/), or [Hormonal Acne](/conditions/hormonal-acne/). Around the mouth, [Perioral Dermatitis](/conditions/perioral-dermatitis/) can resemble small spots; shaving-related bumps and [Razor Bumps](/conditions/pseudofolliculitis-barbae/) are another possibility. These labels should follow assessment, not replace it.

Keep the area clean and dry, avoid scratching, and pause new fragranced or irritating products. Do not share towels or apply steroid cream or mixed creams to a suspected infection without medical guidance. A clinician may inspect the skin and choose treatment according to whether active fungus, inflammation, or residual pigment is present.

[LED Light Therapy](/treatments/laser-and-energy/led-light-therapy/) is not a substitute for diagnosing a suspected infection. If the main problem is acne-like inflammation, a clinician may also consider whether [Rosacea](/conditions/rosacea/) or another cause fits the pattern.

Seek a medical review if spots spread, become painful, ooze, form blisters, involve the eyes or mouth, or persist despite appropriate basic care. Prompt advice is also sensible when a rash affects someone with reduced immunity, or when the diagnosis is unclear and self-treatment is making the skin more irritated.

Does the surface look infectious, inflamed, or mainly pigmented? Is testing needed before treatment? Which products should I stop using? How should I prevent spread to other skin or household members if infection is suspected?