6 Causes and Triggers of Cold Sores
Cold sore outbreaks are common among adults who have contracted the herpes simplex virus. These blisters develop on the lips and may spread if one doesn’t take the necessary steps. The triggers of these outbreaks vary from one person to another, but understanding the common triggers and risk factors associated with cold sores can help one manage the flare-ups in the long run. 1. Herpes simplex Virus-1 Cold sores are commonly caused by the Herpes Simplex Virus -1 (HSV), which is highly contagious. Adults who develop cold sores can spread the virus via oral contact (kissing) or even sharing utensils and personal products like shaving razors or face creams. The infection might often go unnoticed till the blisters are more visible. This infection is the main cause of cold sores, but they may be triggered by multiple factors. 2. Stress and fatigue Any physical duress, mental stress, or even fatigue due to overexertion can activate dormant viruses like HSV-1 and trigger a cold sore outbreak. Studies indicate that stress brings down immunity and gives the dormant virus a chance to replicate, which leads to cold sores. Stress also affects the body’s natural ability to heal and may often cause symptoms of infections like cold sores to flare up unexpectedly.