Yet, Demodex mites are often not the sole cause of rosacea. Their presence can exacerbate rosacea symptoms in many individuals, according to Dr. Fine.

According to Dr. Penzi, folliculitis can be asymptomatic or symptomatic, but the most common symptoms include itching, burning, and pain or tenderness at the site of the infection.

“Studies show Demodex mites are found in about 13% of children aged 3–15, 69% of adults aged 31–50, and nearly 100% of people over 70,” says Dr Bhanu Prakash.