Valacyclovir usually starts working within the first 24 to 48 hours after you begin treatment for a cold sore. Many people notice reduced pain, tingling, itching, or discomfort during this time. However, complete healing of the cold sore may still take several days, often around 5 to 10 days depending on the severity of the outbreak. For the best results, valacyclovir should be started as soon as possible when early symptoms such as tingling, burning, or itching appear. Taking it early can help shorten the duration of the outbreak and may reduce the severity of symptoms.
Educate. Empower. Act. The mission of Project WET is to reach children, parents, educators and communities of the world with water education.
