My son has this clear bubble on his bottom lip, how can you get rid of it? and the bubble is huge.. the doctors that i see keep saying it is normal.. what do i do?

Mucocele: The bump on the inside of his lip is probably a mucocele. It is caused when the duct to a minor salivary gland gets clogged or traumatized and the saliva backs up forming a fluid filled bump. They are most common on the lower lip but can occur elsewhere in the mouth as well. Small ones can resolve on their own. Large ones (as shown here) require surgical removal by and oral surgeon.

Mucocele: Usually they're not a problem and will go away on their own. It can be a common result of lip biting a constant trauma. If concerned see a dentist for evaluation and treatment if needed.