A fever blister typically lasts for 10-14 days. It might also form on the gums or tongue. In most cases, the blisters generally form as groups and trigger swollen, reddened and tender wounds. The blister might drain transparent fluid that scabs after a few days. At this span, a fever blister is considered contagious.
A flare-up can settle without treatment, but there are various ways to effectively alleviate the pain and allow it to recuperate.
What are the causes?
The herpes simplex virus is known to cause a fever blister. It can spread or infect other body parts including the genitals.
The symptoms are not always present immediately. In some cases, the virus remains in a dormant phase within the body and can recur at any time. Usually, an outbreak occurs if the individual is not fully healthy.
What are the usual triggers?
Some triggers might activate the virus and start an outbreak. The common triggers include:
- Stress
- Fatigue
- Depression
- Trauma or injury on the affected area
- Dental procedures
- Prolonged sun exposure
- Hormonal fluctuations
Poor immunity and other health conditions that might instigate an outbreak typically include:
- Dehydration
- High-grade fever
- Headache
- Muscle ache
- Enlarged lymph nodes
- Sore throat
Risk factors for a fever blister
A fever blister outbreak might be an indication of an immune-related ailment or poor nutrition. The blisters may be present with other health conditions that compromises one’s overall health.
Individuals with the following conditions are susceptible to fever blister outbreaks:
- Severe burns
- Weakened or compromised immune systems
- HIV/AIDS
- Eczema
In severe cases, the virus might spread to the eyes, hands or even the brain. Once the blisters spreads to other body parts, a doctor must be seen.