What type of doctor should i see for large, frequent cold sores. i'm also starting to get mouth sores & my tongue, inner cheeks & throat is sore?

Your dentist, or: An oral surgeon. You may need a general exam with your pcp as well. You may have some immune system issues that need to be checked out/addressed. There are several possibilities. Biopsy may be required. Based on exam and diagnosis, treatment can include rinses with steroids, antibiotics, topical ointment/creams...

Dentist: Many conditions can give you this condition and should be confirmed to prevent its re-occurance. One very common problem is lichen planus. See your dentist chuck.

MD: See your physician to confirm diagnosis and discuss treatment. If your physician feels it appropriate, he\she may refer you to an oral surgeon.

A Dentist: Start with a dentist an ENT may be called upon as well.

Several: Any dentist, dental specialist, ent, internist, gp, etc, are educated it this problem.

Doctor for cold sore: Dermatologist, ent, infectious disease specialist would be able to help with worsening cold sores. If the frequency and intensity of herpes simplex eruptions (cold sores) is increasing, you need your immune system evaluated, as this may mean your immune system function is low.