16 May 2019 Stomatitis is a highly contagious, self-limiting infection. It is caused by the herpes simplex type 1 virus . Its characteristics are: It occurs mainly in children aged six months to five years; It is transmitted by contact; It has an incubation period of two to 12 days. Symptoms of stomatitis Symptoms usually include: High fever; Irritability; Refusal of food; Minor sores on the gums, lips and tongue; Bad breath; Enlarged submaxillary ganglia. Usually the disease lasts for about a week . There is some weight loss , but the child recovers quickly after the illness. Treatment of stomatitis The aim of treatment is to keep the child as comfortable as possible and includes: Local disinfectants and painkillers; Antipyretics; Plenty of fluids to ensure proper hydration. Some dietary changes should also be made. Give the child cold, soft food , such as: Milk; Baby cereal; Jelly; Cold, strained soup; Mashed fruit (bananas, apples). Avoid citrus fruit because the acidity can exacerbate the pain. In some cases if it is not possible to ensure adequate fluid intake, the child may need to be hospitalised for intravenous hydration. During the active period of the disease, keep the child out of the nursery or school because of the danger of contagion. This article was written by the pediatrics doctors from the Hospital da Luz network . The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.