White blisters inside the mouth touch very painful, most often seen in herpes or ulcers, specific need to go to the hospital after examination to confirm the diagnosis.
1. herpes: if the human body is infected with herpes virus may appear in the mouth in clusters of small blisters, can be seen in herpes simplex or herpes zoster, herpes zoster clusters of small blisters are generally not in the midline, along the distribution of the nerve line, touch the pain is severe, the blisters appear later will be vesiculation, secondary infection.
2. ulcers: white bubbles inside the mouth may also be ulcers, ulcers on the surface of the yellowish-white pseudomembrane, surrounded by redness, touch pain obvious, usually a single appearances, generally have the ability to self-healing.
The white blisters inside the mouth are painful to touch, it is recommended to go to the hospital for examination and timely treatment, so as not to affect the health of the body.