Small herpes in the coronal groove is usually caused by infection with herpes simplex virus, which requires timely anti-inflammatory and anti-viral treatment. Coronal herpes is a sexually transmitted disease (STD), which is associated with poor sexual lifestyle and lowered immunity. Early manifestations are scattered tiny red rashes, and then gradually form herpes. Herpes coronalis can be treated with medications, such as acyclovir and other antiviral drugs to reduce symptoms and accelerate healing, and mupirocin ointment and other topical antibiotics to control secondary bacterial infections. The daily attention to light diet, avoid spicy stimulation, eat more fresh fruits and vegetables, pay attention to the pubic area clean. The small herpes in the coronary groove may also be caused by other reasons, it is recommended that patients go to the regular hospital to identify the cause of the disease, under the guidance of the doctor for standardized treatment.