The most common ulcers fitting your symptoms would be apthous ulcers or canker
sores. And usually becosules
do not cause them, instead help them heal. The most common causes of apthous ulcers are:
Lack of sufficient sleep or sudden changes in sleep patterns,
Deficiency of B vitamins
, zinc and/or iron,Hormonal
and most importantly STRESS
Proper rest and lifestyle pattern should help prevent further ulcers and you can continue with becosules/beplex forte for healing of the current ones. You can also apply mucopain gel to help with the burning/painful sensation from the ulcers. If the ulcers still don't resolve after another 2 weeks or increase in number, severity or size, get them examined clinically.