The most common infections of the oral mucosa are those caused by Candida albicans and herpes simplex virus (HSV). Candidosis occurs as pseudomembraneous, erythematous and hyperplastic types with varying symptoms from no to a burning sensation. Treatment most importantly includes elimination of any predisposing factors such as smoking, sub-optimal denture hygiene and hyposalivation. A primary HSV infection results in a life-long latent infection recurring in some infected persons either intraorally or on the lip. If treatment is indicated, topical or systemic aciclovir and related drugs can be used.
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