Hi. It's an ulcer Nothing to worry about Refrain from having hot and spicy food

It is called a apthous ulcer. It can affect anyone irrespective of age or gender and not related to use of tobacco product. You should be worried if it doesn’t heal in 7-10 days. Otherwise they heal by themselves in a week’s time. Stress, deficiency of Vit c , b complex may trigger ulcers. A topical anesthetic( you can get one prescribed by a nearby dentist) before food, will reduce the discomfort

Yes, it does look like an ulcer from the pics you have shared. Ulcers can happen due to various reasons and need not always be attributed to smoking or chewing tobacco.

Hello Yes it is ulcer .avoid hot and spicy food.for medication consult through this

seems like an aphthous ulcer apply dologel over it if any other symptoms in your body then please consult a doctor