Toddler Fever Blisters Symptoms, Causes and Treatment

Fever blisters, also known as cold sores, are caused by the Herpes Simplex virus. The virus may infect people of any age, but the ailment is very common in babies and toddlers.

Fever blisters usually occur outside the mouth, chin, cheeks and lips, though these blisters can occur inside the mouth too. If the fever blisters happen to occur inside the mouth, it will be on the non movable parts like upper jaw or gums. Fever blisters do not appear on the tongue or soft palate. The blisters inside the mouth are...


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...much smaller and heal faster than those outside the mouth. Fever blisters are very painful and filled with fluid. The virus hides in the nerve cells of the face. It is highly contagious. Not all infected toddlers develop fever blisters. Some of them transmit the virus to other babies or toddlers without experiencing any symptoms of the disease. In such cases, it is very difficult to predict and take precautionary action.

Symptoms of Fever Blisters on Toddlers

The most common symptoms that accompany fever blisters on toddlers are:

  • Itching and burning sensation on skin in the initial stage of the infection.
  • After one or two days of infection, the blisters start appearing on and around lips, chin, and cheeks with mild fever, body ache, and swollen neck glands.
  • On third and fourth day, the fever blisters start getting ruptured, leaving open painful sores. The blisters tend to re-erupt at the edges of the lips and nostrils. This stage is sometimes referred to as the weeping stage. You need to be very watchful as babies and toddlers tend to scratch the affected area.
  • From the fifth day onwards, the fever blisters begin to dry up. A yellowish or brownish crust is formed and by the eighth day, the blisters eventually fall off.
  • Scabs get formed on the wounds caused by fever blisters and gradually flake off.

Causes for Toddler Fever Blisters

The infectious virus stays in the body and a re-occurrence of the attacks may take place. Recurrence of fever blister in toddlers can be due to the following reasons:

  • Fever or illness.
  • Mouth injury.
  • Food Allergies.
  • Excessive exposure to sunlight or heat.

Treatment for Toddler Fever Blisters

Though there is no cure for the condition and medication is required to treat the pain due to the sores and to protect the toddler from other bacterial infections. The measures that must be taken to treat toddler fever blisters are:

  • Give antibiotics and pain reliving syrups to your toddler as advised by your doctor.
  • Keep the blisters clean and dry.
  • Do not allow your toddler to touch or scratch the blisters.
  • Apply antiseptic ointment on the crusts to keep the skin soft.
  • Do maintain general hygiene.
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