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Genital herpes is common and may not cause symptoms. More on causes, transmission, symptoms, reinfections, diagnosis, treatment, prevention, pregnancy and where to get support.

Cold sores are blisters around the mouth and nose, caused by the herpes simplex virus.

Viral encephalitis is inflammation of the brain caused by a virus and can cause permanent brain damage.

Oral conditions such as mouth ulcers and oral thrush can happen to young babies and infants.

While disease-causing bugs can be transferred during a kiss, most won?t cause disease and the risk of serious disease is very small.

In most cases, mouth ulcers are harmless and resolve by themselves in a few days.

If an unborn baby gets CMV from their mother, it can cause hearing loss and intellectual disability.

Oral sex is using your mouth, lips or tongue to stimulate your partner’s genitals or anus. Includes consent, risks, STIs, reducing risk, avoiding oral sex and where to get help.

Eczema can vary in severity, and symptoms may flare up or subside from day to day.

Shingles is caused by the same virus responsible for chickenpox.