Otitis Externa (OE)—commonly referred to as “Swimmer’s Ear”—is an acute inflammation or infection of the external auditory canal (EAC), the auricle, or both. It develops when microenvironmental disruptions (excess moisture…

Eyelid complaints represent one of the most frequent ocular presentations in outpatient primary care, emergency departments, and dermatology clinics. Differentiating between hordeolum (stye), chalazion, and blepharitis is essential to ensure…

Primary Open-Angle Glaucoma (POAG) is a chronic, progressive optic neuropathy characterized by impaired aqueous humor drainage through an anatomically open trabecular meshwork. This results in elevated intraocular pressure (IOP), mechanical…

Ophthalmological emergencies encountered in primary care and emergency settings carry a significant risk of severe, permanent vision loss if not recognized rapidly. While benign conditions such as uncomplicated conjunctivitis are…

Conjunctivitis—commonly referred to as “pink eye”—is defined as inflammation of the bulbar and/or palpebral conjunctiva. While it is one of the most frequent ocular complaints encountered in primary care and…

Rosacea is a chronic, relapsing inflammatory facial dermatosis characterized by flushing, persistent erythema, telangiectasias, papules, pustules, and phymatous changes. Driven by dysregulated innate immunity, neurovascular hyperreactivity, and skin microbiome alterations,…

Bed bugs (Cimex lectularius) are small, wingless, reddish-brown parasitic insects belonging to the family Cimicidae. As nocturnal hematophagous ectoparasites, they feed preferentially on human skin during sleep. Global resurgence has…

Lyme disease (Lyme borreliosis) is a systemic, tick-borne infection caused primarily by the spirochete Borrelia burgdorferi (and less commonly Borrelia mayonii in North America). As the most common vector-borne illness…

Angular cheilitis—also referred to as angular stomatitis, perlèche, or cheilosis—is an inflammatory perioral condition localized to the commissures of the mouth. Driven primarily by opportunistic fungal (Candida) or bacterial infections,…