I suggest taking acidophilus for herpes. Start at the first tingle. A pharmacist told me about this and I have not had a cold sore fully develop in years.
Acidolpholis cured my cold sores and fever blisters. Had them all my life and saw a note about this bacteria in a magazine. I laughed, like everyone else. Later is desperation I tried some Bulgarian Buttermilk and within 24 hrs they were gone. Worked for years, then they took the buttermilk off the shelves. Replaced it with bulgarian style (no bacteria added). It's a fake and doesn't work anymore. Bought the pills over the counter. Also works great. Just take one or two ocasionaly when traveling and eating processed food.If takeing antibiotics or drinking clorinated water you will need to take a mega dose between antibiotic pills. You will be amazed. No thrush or hemorriods. Most every company has thier own kind of bacteria so I alternate and keep a couple on hand. Some now say that they contain Bulgariacus. That apears to be the best.
I've always had outbreaks of cold sores for more than ten years until a friend told me about Acidophilus. Whenever I feel the tingling on my mouth I crush two tablets of the (Probiotic) Acidophilus (preferrably the Schiff brand) with 1 tsp. of milk and take and repeat this three times a day.
The outbreaks of my cold sores usually happens after the intake of antibiotics which usually breaks down the friendly bacterias so the acidophilus regularises the friendly bacterias and it's a great digestive support.
At first sign of a COLD SORE take two acidofillus capsules with water three times a day. These bowel friendly bacteria used to be available in yogurt and/or goats milk but are now usually removed. I believe that the friendly bacteria helps balance the ph of the colon and eliminates the cold sores. I have used this on myself and my family and a dozen other people in the last 25 years and never seen it fail. Results almost immediate and it never takes more than 24 hrs.