I got lump on my mouth

What to do first ?
consult dental doctor as soon as possible , and do the needed tests which is :
- physical examinaition
- blood test 
- biopsy may be taken in case of infections 
What is the possible treatment ?
- antibiotics such as clindamycin 
- surgical removal in case of cysts 
- other removal options such as : laser therapy 
What is the possibe causes :
- infection 
- Torus palatinus
- cysts