Untreated fever blisters, also known as cold sores, take between one and two weeks to heal, according to MedlinePlus. The condition is commonly caused by the herpes simplex type 1 virus. MayoClinic.com states that sharing utensils, razor blades or towels can spread the virus from one person to another. Most people eventually become infected with the virus by the age of 20. Symptoms of the condition include fluid filled blisters and irritation at the outbreak site. Medications may lessen the duration of a fever blister.
Step 1
Watch for the early signs of a cold sore. The prodome stage occurs before a cold sore erupts; most patients feel tingling or itching at the site where a cold sore will appear in one to two days.
Step 2
Ask your doctor for a prescription of antiviral medications when prodome symptoms are present. Common oral medications include acyclovir, famciclovir and valacyclovir, reports MayoClinic.com. These medications must be started early enough, in the prodome stage, to decrease the duration of the fever blister.
Step 3
Rub antiviral medications onto the skin to decrease the duration of the fever blister. MedlinePlus suggests penciclovir and acyclovir. However, these medications only decrease the duration of the outbreak by several hours to a full day, at most. Apply the medication to the cold sore every two hours while awake.
Step 4
Wash the fever blister with antiseptic soap and water to prevent additional outbreaks from occurring on other areas of the face, including the nose, chin or mouth. According to MedlinePlus, herpes infection of the eye is the leading cause of blindness in the United States. If you suspect the virus is present in the eye, seek immediate medical attention.
Tips and Warnings
- Do not kiss or allow close touching when fever blisters are present. The virus may also transmit to the genital region. Decrease irritation of the fever blister by applying a cold or warm compress to area. Never pick or squeeze a fever blister. Over-the-counter pain medications such as acetaminophen and ibuprofen may decrease pain. Remember to always eat food or drink milk when taking ibuprofen to prevent stomach ulcers.
- Seek medical attention if the fever blister doesn't clear up within two weeks or if symptoms are severe.
Things You'll Need
- Oral antiviral medications
- Topical antiviral medications
