Commute 45 to 59 min. 7.20%. Commute greater than 60 min.
1 Oral Ulcers: Usually, an ulcer is referred to as an open wound which is formed inside the mouth and this occurs due to the invasion of micro organisms. 2  Sometimes, blood blisters are caused due to the skin infections caused as a side effect of medications. 3  Ulcers are of two types they are: Canker sores and Cold sores.
No one knows what causes these small, painful blisters inside your mouth. Triggers include injury, hypersensitivity, infection, hormones, stress and not getting enough of some vitamins. Also called aphthous ulcers, mouth ulcers can appear on your tongue, cheek and gums. They usually last a week or two. Mouth ulcers can be treated with numbing gels.