Painful and annoying, a mouth sore of any type can make eating and drinking for a week or two quite a challenge. Canker sores should not be mistaken for other mouth sores that are caused by viruses like the Cold sores. Here are the key differences and their treatments:
Canker sores only appear inside the mouth (inside the cheek, under the tongue, or in the back of the throat.) They usually have a red edge and a gray center.
They can be quite painful. Canker sores aren't contagious. They may happen if you have a viral infection. They may also be triggered by stress, food allergies, lack of vitamins and minerals, hormonal changes or menstrual periods. Sometimes trauma such as scratches, bites, or cuts in the mouth can also cause canker sores or further irritate an existing one. In some cases, the cause is unknown. The only treatment is to relieve its symptoms – they simply have to run their course of 7 to 10 days. Over-the-counter pain medication (Advil or Tylenol) or topical numbing agents or antimicrobial mouth rinses (ask your pharmacist) offer temporary but good relief. Also, avoiding spicy, hot, acidic, hard, or crunchy foods will keep the canker sore from getting further irritated and thus delaying the healing process.
Cold sores, or fever blisters, are fluid-filled red blisters on the lips and skin around them. They are caused by various herpes viruses, are highly contagious, and are sometimes accompanied by a cold or flu with fever. Some people find a cold sore painful and others find the sores tingle, itch, or burn. Once a patient is infected with this virus, it “sleeps” in the nerve cells and “wakes up” when the body is stressed. Wind, sunlight, and fatigue can cause a flare up of the herpes virus. Unfortunately, there is no cure for cold sore. A sore will usually heal on its own without any scar within 12 days by blistering, breaking open, oozing fluid, and a scab formation. The oozing fluid stage is the most contagious as the liquid contains millions of infectious virus particles that can spread to other body parts or other people via skin contact or by sharing utensils, towels, or drinks. Thus, during the outbreak, prevent your child from scratching or picking at the sores. Antiviral medication in pills or ointment can speed healing and can be most effective in early stage of outbreak (before blistering). Over-the-counter topical anesthetics or antiviral agents provide good temporary relief of discomfort. Contact your pediatrician or pediatric dentist to arrange a visit. Avoid your child from eating foods that can further irritate the sore such as acidic, spicy, hard, or crunchy foods. Using sun block before being in the sun and lip balm for dry lips can help prevent such outbreaks.