Ulcers are produced after a few days of fever. They occur inside the lips (underlips) or the mouth.
Symptoms of mouth sores
A swelling with blisters. If these little swellings burst, a little liquid comes out and forms an ulcer or scab inside the lips or mouth and it may hurt.
Causes of mouth sores
The most common causes of mouth sores are viral infections of benign herpes type. Mouth sores disappear after 8 or 15 days. Furthermore, blisters are also formed because of fever caused by an infection.
A quick home remedy is to rinse your mouth with Aloe Vera extract several times a day. Additionally, you can use Jojoba ointment for lips.