Infections: Viral infections like herpes simplex can cause similar lesions. - Allergic Reactions: Toothpaste or mouthwash containing sodium lauryl sulfate may trigger ulcers. Types of Mouth Ulcers ...

Cold sores are a lesion that can appear on and around the mouth ... but the following home remedies may help you relieve and heal them sooner. What causes cold sores? The Herpes simplex virus ...

They may resolve faster with home remedies, including saltwater, coconut oil chamomile, and OTC medication. Occasionally, blood blisters in the mouth may develop due to an underlying cause ...