What should you know about demodex brevis and demodex folliculorum?

Demodex folliculorum is associated mainly with hair follicles, while Demodex brevis is found more deeply around oil glands. Both can be present without causing noticeable disease. Excessive numbers or an inflammatory reaction may be associated with roughness, redness, itching, burning, scaling, or small bumps around the face and eyelids.

These findings overlap with [Rosacea](/conditions/rosacea/) and other skin conditions. A report that mites are present should be interpreted alongside symptoms and the examination, rather than treated as a diagnosis on its own.

Keep cleansing gentle and avoid scrubbing, squeezing bumps, or applying strong essential oils. Use clean towels and change pillowcases regularly if this helps you maintain a simple routine, but do not attempt to sterilise the skin. If eyelids are involved, avoid eye makeup during a flare and do not share cosmetics.

A dermatologist can decide whether treatment is needed and choose a product appropriate for the affected area. A medicated cleanser or [Medicated Shampoo Treatment](/treatments/medical-dermatology/medicated-shampoo-therapy/) may be considered for selected scalp or hair-bearing areas; face and eye treatment require specific instructions.

Arrange a review when symptoms last, recur, or affect sleep or vision. Seek prompt assessment for eye pain, light sensitivity, blurred vision, marked eyelid swelling, or a painful rash. Widespread swelling or breathing difficulty is urgent.

Do my symptoms suggest Demodex-related inflammation or another diagnosis? Which areas should I treat? Is an eyelid product safe for me? How long should I try the recommended routine before reassessment?