Demodex overpopulation often appears in individuals with suppressed immune systems. Symptoms include a red rash made up of small pimple-like bumps.

While some mites are naturally occurring on the skin and hair, a Demodex mite overpopulation often causes skin irritation, inflammation, and other skin disorders. Treatments work by killing mites and their larvae. The mite lifecycle might be 30 days long, so you should continue treatment even after the skin has improved.

Eczema (atopic dermatitis) is a condition that makes your skin red and itchy. It's common in children but can occur at any age. Eczema is chronic and tends to flare periodically, then subside.

The exact cause of eczema is unknown, but it's thought to be linked to an overactive response by the body's immune system to an irritant. It is commonly found in families with a history of allergies or asthma.

Fungal infections of the skin are very common, but for some people, they cause dramatic rash on the face and neck area. Many times the scalp can also be affected.

These infections, including conditions like seborrheic dermatitis, tinea, and candidiasis, thrive in warm, moist environments and can be difficult to eliminate completely without consistent treatment.

Rosacea is a common skin condition that causes redness and visible blood vessels in your face. It may also produce small, red, pus-filled bumps. These signs and symptoms may flare up for weeks to months and then diminish for a while.

Rosacea can be mistaken for acne, other skin problems, or natural ruddiness. While there's no cure for rosacea, treatments can control and reduce the signs and symptoms.