This condition causes blood blisters to form on the inner cheek, gums, tongue and/or the roof of the mouth. It is caused by the herpes simplex virus 1 and symptoms, like pain, a burning sensation, fatigue and fever, will be felt. You will consistently find a blood blister in the mouth of alcoholics, because alcohol can cause ulcerations inside your mouth.
Sudden hearing loss after stroke is less common than other neurological impairments, but it may be the initial presentation of vertebrobasilar ischemia, which is more common in the presence of vascular risk factors (Kim & Lee, 2009; H. Lee & Baloh, 2005; H. Lee & Cho, 2003; H. Lee et al., 2002; H. Lee, Whitman, Lim, Lee, & Park, 2001).
Speech problems following stroke sometimes recover within hours or days, however, some communication problems are more permanent. Some people had help from a Speech and Language Therapist to aid their recovery (see 'Stroke recovery' Communication disorders'). The amount of recovery that can be achieved varies depending on the area of the brain that has been affected and the extent of the damage.