Fever blisters are caused by an initial infection with the herpes simplex virus (HSV-1). The main triggers of a fever blister outbreak can be due to external and internal causes.
Internal factors | External factors |
---|---|
Fever | Windburn |
Illness | Ultraviolet radiation (sunshine, tanning booths) |
Menstruation | Chilling |
Upset stomach or GI disturbance | Excitement |
Minor infections | Emotional stress |
Any disease that increases metabolism (e.g. diabetes, hyperthyroidism) | Drying of the lips |
Presence of a second virus (e.g., common cold, flu) | Allergic reactions, including reactions to food |
Fatigue | Any physical injury |
Factors that depress the immune system | Dental treatment |
Herpatch helps to treat fever blisters throughout their entire cycle. Its effect goes even so far that the application of a Herpatch can help to prevent the occurrence of fever blisters, when the first tingling is felt on the lips!