Valacyclovir works best if it is used within 48 hours after the first symptoms of shingles or genital herpes (e.g., pain, burning, or blisters) begin to appear. For recurrent outbreaks of genital herpes, valacyclovir works best if it is used within 24 hours after the symptoms begin to appear. If you are taking valacyclovir for the treatment of chickenpox, it is best to start taking valacyclovir as soon as possible after the first sign of the chickenpox rash appears, usually within one day. Valacyclovir may be taken with meals or on an empty stomach. If you are using the oral suspension, use a specially marked measuring spoon or other device to measure each dose accurately. The average household teaspoon may not hold the right amount of liquid. Drink extra fluids so you will pass more urine while you are using this medicine. This content has not been reviewed within the past year and may not represent Web MD's most up-to-date information. To find the most current information, please enter your topic of interest into our search box. 27, 2002 -- Here's good news for cold sore sufferers. Just one day of treatment with a medication called Valtrex makes the unsightly, painful sores disappear faster. A study presented at the American Academy of Dermatology's summer meeting, held in New York this week, outlines results from a large trial of Valtrex. "The findings of these studies are encouraging as they show there may be a convenient and effective way for people with cold sores to treat their outbreaks," says researcher Stephen K. Tyring, MD, Ph D, of the University of Texas Medical Branch at Galveston, in a news release. A one-day oral treatment that shortens the duration of outbreaks has clear advantages over currently available topical treatments, he says. Prednisolone 5mg dosage Ciprofloxacin dosage in dogs Levitra indonesia Valtrex received an overall rating of 8 out of 10 stars from 35 reviews. See what others. Used to work when I first started it but now it does absolutely nothing. Common Questions and Answers about Acyclovir how long does it take to work They do what they are supposed to do, and do it well, maybe even without. Instead, Valtrex valacyclovir— a pro-drug of acyclovir is preferred. Cold sores are painful and oozing, and they always seem to appear before that wedding or class reunion. Cold sores are typically caused by type 1 virus (HSV-1). Also called fever blisters, the small, fluid-filled lesions typically form near or on your lips and can cause symptoms such as tingling, itching, or burning. But in some cases, HSV-1 can cause sores on the genitals and type 2 virus (HSV-2) can cause sores on the mouth. But, because they’re caused by a virus, they can be treated with antiviral medications. Valtrex, which contains the active ingredient valacyclovir, can help your cold sores clear up faster. It can also reduce the number of cold sores you get. Read on to learn how Valtrex works and how to use it to treat your cold sores. Cold sores typically start to heal on their own within about four to six days. Although, the first cold sore you get will likely last longer. Most people don’t require treatment for their cold sores, but, in some cases, a doctor may prescribe an antiviral medication such as Valtrex. Valacyclovir belongs to the class of medications known as antivirals. It is used to treat a viral infection affecting the skin known as shingles (herpes zoster). It is also used to treat cold sores, and to treat and prevent recurrences of genital herpes. It works by interfering with the way the virus reproduces. Valacyclovir works by stopping the virus from multiplying and spreading to nearby healthy cells. It does not cure shingles, cold sores, or genital herpes, but it does help the sores to heal more quickly, and it relieves pain and discomfort. When used to prevent recurrences of herpes, it also reduces the risk of transmission (spreading) of the infection to others. Does valtrex work Valtrex Reviews & Ratings at, Acyclovir how long does it take to work - MedHelp Doxycycline clearanceCipro vs macrobidSildenafil resultsCialis contact Find patient medical information for Valtrex Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Valtrex Oral Uses, Side Effects, Interactions, Pictures.. How Do Herpes Drugs Work? American Council on Science and.. How quickly does Valtrex take full effect? Zocdoc Answers. Valacyclovir works by stopping the. It does not cure shingles, cold. Just one day of treatment with a medication called Valtrex makes the. While most people are exposed to the virus, it's not known why some people get cold sores while others do not. Penis Enlargement Does It Work? _top. I recently heard about Voltaren Gel for treatment of Osteoarthritis. I'm wondering if anyone has used it and does it work in relieving the pain? I did some.