Shadowgraph videos of the outer airflow during a<unk> , comparing unmasked<unk> ing with several different method of covering one's mouth and nose:<unk> ing into a fist, a cupped hand, a tissue, a<unk> catcher" device, a surgical mask, and an N95 mask Complications The complications of<unk> ing can be classified as either acute or chronic. Acute complications include<unk>  syncope (fainting spells due to decreased blood flow to the brain when<unk> s are prolonged and forceful), insomnia,<unk> -induced vomiting, subconjunctival hemorrhage or "red eye",<unk> ing defecation and in women with a prolapsed uterus,<unk>  urination. Chronic complications are common and include abdominal or pelvic hernias, fatigue fractures of lower ribs and costochondritis. Chronic or violent<unk> ing can contribute to damage to the pelvic floor and a possible cystocele.
Cough
Phlegm
Sneeze
Voice change
Nasal congestion
Chills
Choking
Night Sweats