If the sore is on your tongue or the roof of your mouth, place ice cubes into your mouth one at a time and allow them to melt slowly.
You can use this mixture up to 4 times a day to relieve pain.
Apply milk of magnesia 3 times daily until the sore stops hurting, usually in around 3-4 days.
The heat from the tea bag can also numb pain.
Consuming aloe vera can cause stomach aches and diarrhea with long-term use at high doses. Only use it for 3-4 days when your sore is most painful and stop when it starts to feel better to avoid risk.
These mouthwashes are available over the counter at most pharmacies.
You can buy oral lidocaine and acetaminophen from your local pharmacy or drugstore.
Good choices of non-acidic foods include yogurt, potatoes, non-citrus fruits, and whole-grain pasta.
Drinking through a straw can also help if you are still experiencing pain.
Some good options include cereal that has been soaked in milk, soft-shell tacos, mashed potatoes, pasta, and rice. Try cooked vegetables and fruit cups for softer fruit and vegetable options.
A foaming-agent-free toothpaste can also reduce irritation. These kinds of toothpaste can be found over the counter at most pharmacies.
Most cold sores go away on their own, so if they don’t, then that’s a sign that something else is wrong.
You may need a medicated balm or other treatment to help it go away.
Your doctor may recommend something as simple as taking a dietary supplement. Or, you may need to make a major change like removing gluten from your diet entirely.
Alternatively, your doctor may prescribe a gel or cream containing similar ingredients that you can apply directly to the sore.
The next step might be a steroid injection, but since this can cause severe side effects, it is usually considered a last resort. Another option is cauterizing the sore, using an instrument to burn or destroy the infected tissue.