Detailed answer

Hyperpigmentation refers to the darkening of areas of the skin due to excess melanin production. This condition is not associated with oral herpes or cold sores. Oral herpes, caused by the herpes simplex virus (HSV), is characterized by the presence of cold sores or blisters on or around the lips. These sores can be painful and fluid-filled, but they do not cause hyperpigmentation. Hyperpigmentation may be caused by various factors such as sun exposure, hormonal changes, post-inflammatory hyperpigmentation, or certain medical conditions. It is important to consult a skincare professional or dermatologist for an accurate diagnosis and appropriate treatment of hyperpigmentation.