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.
Search Now. Find an Infectious Disease Specialist. A rare autoimmune disorder known as pemphigus vulgaris creates skin blisters and causes scabs, and it may be accompanied by blisters that may appear on the entire body including the scalp and the inside of the mouth.listers, lacerations, abrasions or burns may also cause scabs as they heal. Impetigo, a bacterial skin infection, can also result in scabs. Depending on the cause, scabs may occur only immediately following an acute injury, or they may be due to recurrent breakouts from a chronic condition, such as psoriasis.