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Cold Sores vs. Canker Sores: When to Seek Medical Care
Understanding the difference between cold sores and canker sores is key in determining appropriate actions. Cold sores, also known as fever blisters, are caused by the herpes simplex virus. They appear on the lips or around the mouth as painful blisters. Canker sores are small ulcers that occur inside the mouth. Unlike cold sores, canker sores are not contagious.
For cold sores, medical care might be sought if an individual has a weakened immune system, experiences severe pain, or notices that the cold sore has not healed within two weeks. Additionally, frequent occurrences of cold sores may lead to a discussion about prescription medication to reduce outbreaks.
- Weakened immune system
- Severe pain
- Not healed within two weeks
- Frequent occurrences
For canker sores, they are generally considered less concerning than cold sores. Most cases of canker sores do not involve professional medical treatment and tend to heal within one to two weeks. However, medical care might be considered if:
- Unusually large canker sore lesions (larger than 1 cm) are observed
- Significant pain persists despite the use of over-the-counter aids or topical treatments for several days
- There is an increasing number of lesions
- Any signs of bacterial infection such as fever or swelling in nearby lymph nodes are present
Early intervention in managing symptoms and preventing potential complications ensures a more comfortable recovery process.