Acne

src: i.ytimg.com Acne , also known as acne vulgaris , is a long-term skin disease that occurs when hair follicles are clogged with dead skin...

Medication overuse headache

src: slideplayer.com Medication overuse headache ( MOH ), also known as rebound headache usually occurs when analgesics are taken frequent...

Periodontal disease

src: implants-teeth-in-5days.com Periodontal disease , also known as gum disease , is a set of inflammatory conditions affecting the tissues...