Background: Periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) is the most common periodic fever syndrome of childhood. Symptoms can include swelling of the glands in the throat, mouth ulcers, and tonsillitis. Removal of the tonsils can stop the periodic flareups. But researchers do not know how PFAPA develops. In this natural history study, researchers will collect specimens and ...

Summary: Higher prevalence of recurrent aphthous ulcer in young adults and the severity decreased with increasing age. The etiology of aphthous ulcer remains unclear. Other possible factors include trauma, drug use, deficiency in vitamin B12, folic acid, iron, stress, hormonal changes and metabolic diseases. Many topical agents such as local and systemic an- tibiotics, local antiseptics, topical NSAIDs, an...

Summary: A randomized double-blind placebo controlled trial will be carried out on 20 patients complaining from aphthus ulcer and 10 patient healthy control 10 patients treated with mucoadhesive gel containing 2% of basil extract 4 times per day (test group) for 20 min after every meal and before going to bed. The other 10 patients treated by mucoadhesive gel without drug which was used as placebo (compose...