You are suffering from Ranula.
A ranula is a fluid collection, or cyst, that forms in the mouth under the tongue. It is filled with saliva (spit) that has leaked out of a damaged salivary gland.
Ranulas do require treatment, but they are not serious in that they are not life threatening and do not typically cause pain. A ranula, if large enough, can lift the tongue and impair chewing, eating, and swallowing.
Next Steps
There are a few ways the ranula can be treated:
Incision or needle aspiration: Depending on its size, an incision is made and drain the cyst to decrease swelling or use a needle to withdraw the fluid.
Marsupialization: The surgeon makes a slit in the cyst and sutures the edges to maintain an opening.
Health Tips
Since the ranula is already burst- No immediate urgent treatment needed now