Mouth ulcers (canker sores) usually heal on their own in 7–14 days, but you can ease pain, speed healing, and prevent new ones with some simple steps and, if needed, medicines.

Quick Scoop

  • Use saltwater or antiseptic mouthwashes to keep the ulcer clean and reduce infection risk.
  • Apply topical gels/sprays or lozenges for pain relief and faster healing.
  • Try gentle home remedies like honey, coconut oil, or aloe vera on the sore for soothing relief.
  • Avoid triggers: spicy, salty, acidic foods, very hot drinks, and trauma from hard or sharp foods.
  • See a doctor or dentist if ulcers are very large, extremely painful, keep coming back, or last longer than 3 weeks.

If you have fever, weight loss, severe tiredness, eye/genital ulcers, or ulcers that won’t heal, treat it as a medical issue that needs prompt professional review.

What actually helps (at home + pharmacy)

1. Rinse and clean

  • Saltwater rinse : Dissolve half to one teaspoon of salt in a glass of warm water, swish gently for up to 30–60 seconds, then spit; repeat several times a day.
  • Antimicrobial / antiseptic mouthwash: Products containing chlorhexidine or similar agents can reduce bacteria and help healing; choose alcohol‑free versions to avoid extra sting.

These keep the ulcer clean, lower infection risk, and often reduce pain a little.

2. Pharmacy treatments for faster relief

Pharmacists can usually recommend options without a prescription.

  • Pain‑relief gels, sprays, or mouthwashes (with local anesthetics) to numb the area before meals or sleep.
  • Protective pastes or films that coat the ulcer so food and drinks irritate it less.
  • Corticosteroid lozenges, mouthwashes, or pastes in more severe or recurrent cases to calm inflammation.

If pain is significant, standard pain tablets (like paracetamol) may also be used as directed, but this should be discussed with a healthcare professional, especially if you have other conditions or medications.

3. Gentle natural remedies

These don’t replace medical treatment if ulcers are severe, but many people find them soothing.

  • Honey dabbed on the ulcer several times a day can form a protective layer and has antibacterial and healing properties.
  • Coconut oil applied directly may reduce pain and inflammation thanks to antimicrobial effects.
  • Aloe vera gel (pure, food/oral‑grade) can calm soreness and support healing.
  • Cool water sips or ice chips can briefly numb pain and make eating and drinking more comfortable.

A typical nightly routine: saltwater rinse, pat the ulcer dry, then apply honey, coconut oil, or a medicated gel before bed.

Eating, drinking, and daily habits

Making a few temporary changes can make a big difference while the ulcer heals.

  • Choose soft, bland foods: yogurt, porridge, smoothies, mashed potatoes, scrambled eggs.
  • Avoid:
    • Spicy, salty, acidic foods (chili, citrus, vinegar, tomatoes).
    • Very hot food or drinks, rough/crusty bread, chips, nuts that scrape the ulcer.
  • Drink plenty of fluids; cool water can be soothing.
  • Brush gently with a soft‑bristled toothbrush and avoid hitting the ulcer.

If needed, drinking through a straw (when the ulcer isn’t at the back of the mouth) can reduce contact with the sore area.

Why you might be getting them (and when to worry)

Common triggers include minor mouth trauma, stress, hormonal changes, and sometimes nutritional issues or other medical conditions.

You should get urgent medical or dental advice if any of the following apply:

  • Ulcers last longer than 2–3 weeks.
  • They are unusually large, spreading, or extremely painful.
  • You have frequent recurrent ulcers.
  • You also have fever, rash, eye or genital ulcers, gut symptoms (like chronic diarrhea), or unexplained weight loss.
  • You smoke or drink heavily and notice new persistent mouth sores.

A doctor or dentist can check for infections, vitamin deficiencies, medication side effects, or underlying conditions and may prescribe stronger treatments like steroid mouthwashes or tablets if needed.

Simple mini‑plan you can follow

  1. Today: Start saltwater rinses 3–4 times a day, switch to soft, non‑spicy foods, and avoid biting or poking the ulcer.
  1. Today–Tomorrow: Get an over‑the‑counter numbing gel or protective paste and use it before meals and bedtime.
  1. This week: Track triggers (stress, specific foods, new toothpaste or mouthwash, braces/retainers rubbing, etc.) and adjust what you can.
  1. Within 2 weeks: If the ulcer hasn’t improved, or new ones keep appearing, arrange a check‑up with a dentist or doctor.

Quick HTML table (for your post)

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<table>
  <thead>
    <tr>
      <th>Method</th>
      <th>What to Do</th>
      <th>Why It Helps</th>
      <th>When to Use</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Saltwater rinse</td>
      <td>Dissolve 1/2–1 tsp salt in warm water, swish and spit several times daily.[web:1][web:3][web:5][web:7]</td>
      <td>Keeps ulcer clean, reduces infection, mildly relieves pain.[web:3][web:5][web:7][web:9]</td>
      <td>First‑line home care for most mouth ulcers.</td>
    </tr>
    <tr>
      <td>Antiseptic mouthwash</td>
      <td>Use alcohol‑free chlorhexidine or similar rinse as directed.[web:3][web:5][web:7][web:9]</td>
      <td>Reduces bacteria and inflammation, can speed healing.[web:3][web:5][web:9]</td>
      <td>When ulcers are multiple, recurrent, or more painful.</td>
    </tr>
    <tr>
      <td>Topical gels/sprays</td>
      <td>Apply numbing or protective gel directly to ulcer, especially before eating.[web:5][web:9]</td>
      <td>Numbs pain, protects sore from irritation.[web:3][web:5][web:9]</td>
      <td>Short‑term pain control, particularly at mealtimes.</td>
    </tr>
    <tr>
      <td>Honey / coconut oil / aloe</td>
      <td>Dab small amounts onto the ulcer several times a day.[web:1]</td>
      <td>Soothes, may have antimicrobial and healing effects.[web:1]</td>
      <td>As an added natural option alongside other care.</td>
    </tr>
    <tr>
      <td>Diet changes</td>
      <td>Eat soft, bland foods; avoid spicy, salty, acidic, or very hot items.[web:3][web:7][web:9]</td>
      <td>Prevents extra trauma and irritation, making healing easier.[web:3][web:7][web:9]</td>
      <td>Throughout the healing period.</td>
    </tr>
    <tr>
      <td>Professional treatment</td>
      <td>See doctor or dentist for persistent, severe, or recurrent ulcers.[web:3][web:5][web:7][web:9]</td>
      <td>Allows diagnosis of underlying causes and use of stronger medicines.[web:3][web:5][web:9]</td>
      <td>If ulcers last &gt;2–3 weeks, are very large, or keep coming back.</td>
    </tr>
  </tbody>
</table>

Information gathered from public forums or data available on the internet and portrayed here.