hi and welcome,
Appereance of white or red bumps on the oral mucosa is seen due to several reasons ;
It can be a allergic reaction
to certain food stuffs , deficiency or vitamins especially vitamin B 12 and vitamin C may lead to oral lesions.
Habits like tobacco chewing
,smoking and alcohol consumption may also lead to oral inflammation
these bumps can be bening or malignant lesions but needs clinical evaluation before confirming.
Exact diagnosis can be made only after clinical examination and pathological tests .
i would suggest you to consult and oral surgeon and get the evaluation done.
Meantime avoid tobacco chewing and other habits if any .
start with a multivitamin
supplement course for 7 to 10days and maintain good oral hygiene
to prevent infection.
i hope this helps ,