Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain a
bruise below lower lip can be due to infection n that area caused due to clogging of glands or hairfollicle infection it can also be due to any insect bite, vigorous rubbing of the area to itch or unnoticed trauma..
A red area inside mouth that is having a bump can be an apthous ulcer..
I would suggest you to do alternate warm and cool compresses over the bruise..
You can also apply
Heparin gel over it..
For bump inside mouth, if there is pain you can apply numbing gel containing Lignocaine..
You can also do cool compresses over it..
Take Vitamin B complex for a week.
In case if there is no improvement
consult a Dermatologist and get evaluated and a thorough clinical evaluation can help in diagnosis and treatment can be done accordingly..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.