What Are the Best Vitamins for Cold Sores?

Cold Sores aren’t caused by a lack of vitamins, but taking certain combinations helps to build up your resistance to the virus. The Herpes Simplex Virus-1 causes cold sores, but a lack of vitamins and nutrients makes it harder for your body to fight off the virus.

There are vitamins that help to boost your immune system and heal a cold sore faster. This reduces the chances of another outbreak. The best vitamins for cold sores can be found in the foods that we eat, and also in the supplements that we use to treat cold sores.

The virus that causes cold sores never leaves your body! It lies dormant in the nerves by your ear, and when you feel sick or ill, or become too stressed, or fatigued, it will cause the virus to ‘wake up’, so to speak. Your body will try to fight whatever it is that is making you ill, so you need to help it. When you don’t have enough of the vitamins that your body needs, this makes it a lot easier for the virus to flourish.

What are the best vitamins for cold sores?

There are vitamins that work really well for maintaining your immune system healthy, so let’s take a closer look at them.

Find Out the Best Vitamins for Cold Sores

Lysine or L-Lysine

This is one of the most highly recommended vitamins. It helps to get rid of cold sores fast, and it can also keep them away.  Taking Lysine supplements enables your body to fight off the virus, preventing it from reproducing so you’re able to recover faster.

If taking a Lysine supplement, when you have a cold sore, the recommended dose is between 2,000 to 3,000 mg daily. When it heals, the dose drops down to 1,000 mg. a day to minimize the chances of getting them again.

Vitamin A

Vitamin A is commonly used because it heals cold sores quickly. You can take a supplement, or eat certain foods. The best sources include:

  • Lettuce
  • Spinach
  • Sweet potatoes
  • Carrots

Eating those foods raw is the best source of the vitamin. You can cook them, but it allows a lot of the nutrients to escape.

Vitamin C

Vitamin C with Bioflavonoids is a natural anti-viral vitamin. It activates the white blood cells, which the body uses to fight infection. This helps to speed up the healing process. It also eases stress and reduces fatigue, both of which can ‘potentially’ cause cold sores.

The recommended dose is to take 500 mg a day for the length of the blister. As well as taking supplements, eating foods rich in vitamin C can help. Some of the best sources of vitamin C include:

  • Oranges
  • Strawberries
  • Grapefruit
  • Lemons

Vitamin B

Vitamin B complex vitamins are vital for your overall health. They help your body to process protein and fats. Besides that, your skin and hair, as well as your liver requires this vitamin to stay healthy. Some of the foods that contain vitamin B include:

  • Fish
  • Spinach
  • Goat
  • Cow milk
  • Almonds
  • Cheese

When you have a deficiency, it can lead to cold sores. That’s because it can cause your skin to develop cracks and sores, which allow the virus into your body and enable it to spread. It’s important that you maintain proper levels of vitamin B in your system.

best vitamins to fight cold sores


Zinc is an immunity booster. It not only reduces the number of cold sores that you get, but it also minimizes the healing time. As a supplement, you should take 50 mg of zinc a day.

Zinc can also be found in a variety of foods.  Dairy foods, including cheese and yogurt, fish, beans, and the yolks of eggs all contain zinc.

Zinc is also an ingredient that is in OTC cold sore treatments, because it has an agent that dries out the fluid that is in fever blisters.

Give Your Immune System a Boost

A combination of 50 mg. of Zinc, 500 mg of vitamin C, and 2,000 to 3,000 mg of Lysine, taken for the duration of the fever blister, will drastically reduce the healing time! You should take the daily recommended dosage of each vitamin, even when you don’t have a breakout, to maintain your body’s ability to fight viruses.

There are many things that you can do to relieve the pain of a cold sore, and to make it heal faster. But, by taking the vitamins mentioned above, the life of a cold sore will drastically decrease.

The above vitamins are needed for your body to fight viruses and keep your immune system strong.  Eating foods that are high in these vitamins, and taking the proper supplements, will help keep the HSV-1 virus in a dormant state. Take the best vitamins for cold sores daily to stay healthy.