Aphthae in mouth occurs out of digestive problems. They occur most of time when you consume warm things like chicken daily, especially two times a day in summer. Human body is not designed to digest that much protein overload in a day. That excess protein requires lot of energy, water and oxygen molecules for digestion. Digestion of that overload quantity cause deficiency of vitamin B, iron and folic acid in body. Their deficiency cause aphthae in mouth. Homeopathic medicine that cures them are for example, Aethusa cynapium, Hydrastis, Phytolacca and Arsenicum album. Like them, there are around 10 Homoeopathic medicines that cure aphthae in mouth. Let discuss each of them in detail. Image Source - https://commons.m.wikimedia.org/wiki/File:Aphthe_Unterlippe.jpg