Canker Sores, Cold Cores, Leukoplakia Sores In Children: Causes And Treatment

Knoji reviews products and up-and-coming brands we think you'll love. In certain cases, we may receive a commission from brands mentioned in our guides. Learn more.

Before knowing about mouth sores in children treatment and causes, let us know something more about the types of mouth sores

Types of Mouth Sores in Children

The canker sores, which are one of the mouth sores in children can be referred to as big ulcers, which are shallow and have a red border coupled with a center which is either yellow or white in color. It is possible that some children get more than one canker sore at a particular time. Some children may experience lymph node swelling or fever at the time of developing canker sores. Though these mouth sores in children get healed in a few weeks, the pain associated with them can be too much. The cold sores, which are due to the herpes simplex virus are mostly located outside the mouth of children, or around their lips or on their cheeks.

Leukoplakia sores are formed due to excessive growth of cells and can lead to cancer in further stages while the Candidiasis sores are a result of fungal infections, which are caused by a yeast called as Candida Albicans. Now, let us know what causes mouth sores in children.


  • Canker Sores in Children
  • Cold Sores in Children
  • Leukoplakia Sores in Children
  • Candidiasis Sores in Children

Canker Sores in Children


Following are the causes of mouth sores in children that are due to canker sores:

  • Emotional stress
  • Deficiency of vitamin B12, iron and folic acid
  • Food allergy
  • Accidental biting of lips or cheek
  • Intake of hot liquids and foods like corn chips
  • Orthodontic brackets and bands
  • Rubbing of oral tissues due to broken teeth
  • Presence of bacteria causing peptic ulcers
  • Family history of canker sores
  • Chewing tobacco causes canker sores due to harmful chemicals in tobacco

Read more on are canker sores contagious.


Following are the treatments for canker mouth sores in children:

  • Prepare soft bland foods and avoid serving spicy foods, citrus fruits and juices and chocolates
  • Make use of plastic utensils
  • Acidic and rough foods should be avoided
  • Feed your child with acidophilus containing yogurt
  • Intake of cold fluids and eating popsicles is recommended by many physicians
  • Maintaining good oral hygiene
  • Using toothpastes free from sodium lauryl sulfate

Read more on canker sore home remedies.

Cold Sores in Children


Following are the cold mouth sores causes in children:

  • The herpes simplex viruses-HSV-1 and HSV-2 cause cold sores
  • Kissing infected persons, sharing razors or touching saliva of infected person
  • Too much exposure to bright sun rays
  • Excessive stress
  • Sickness
  • Sharing drinks with kids, having cold sores
  • Lips which are chapped cause cold sores


Following are the treatments for cold mouth sores in children:

  • Have a balanced diet with foods containing lysine like chicken and beans
  • Applying moisturizer to the sore region
  • Using balm to cover the sores
  • Applying baking soda and water on the sore region in cases of young children
  • Zilactin can help to numb the sore

You can read more on remedies for cold sores.

Leukoplakia Sores in Children


Following are the leukoplakia mouth sores causes in children:

  • Excessive cell growth
  • Broken teeth
  • Frequent chewing on the cheeks
  • Smoking and chewing tobacco


Following are the treatments for leukoplakia mouth sores in children:

  • Removal of lesions causing irritants
  • Quitting the habit of smoking
  • Proper balanced diet

Candidiasis Sores in Children


Following are the candidiasis mouth sores causes in children:

  • Fungal infections from yeast called as candida albicans
  • Some antibiotics treatments can cause candidiasis sores
  • Immune system disorders like cancer and AIDS


Following are the treatments for candidiasis mouth sores in children:

  • Seek advice from dentist for brushing teeth
  • Have substitutes for dry mouth and saliva
  • Controlling the factors causing candidiasis

This article has covered all points related to mouth sores in children. Mouth sores in children can be controlled by maintaining a good lifestyle and seeking medical advice at the right time.