Best Answer: dont do it.. pet stores exploit pets for cash.. they support cruel mass breeding industries.. its horrid.. you will be working with the public trying to get them to buy pets ...
Summary. 1  A mouth ulcer is the loss or erosion of the delicate lining tissue of the mouth (mucus membrane). 2  The most common cause is mechanical injury, such as accidentally biting your cheek. 3  In most cases, mouth ulcers are harmless and resolve by themselves in a few days without the need for medical treatment.
The human mouth normally contains a balance of different bacteria, but trench mouth occurs when this balance is upset. Oral bacteria build up, which damages gum tissue, causing it to become infected and develop ulcers [source: PubMed Health]. Trench mouth is often quite painful. Symptoms can come on suddenly and include [source: Mayo Clinic]: