An acute or chronic infection of the soft tissues around the nail. Symptoms include pain, tenderness, erythema, and swelling around the nail. Acute infection results from minor trauma to the fingertip and Staphylococcus aureus is usually the causative agent. Chronic infection is usually caused by Candida albicans. The disease is Monarch Disease Ontology id MONDO_0005898 (paronychia). Also known as: fungal nail infection, infected nailfold, onychia and paronychia of finger, onychia and paronychia of toe, paronychia (disease).