cat dental problems?

so my cat's gums have become red and on top of her teeth it's white/gray. i took her to the vet's in dec. to get her teeth cleaned bcus they were covered w/plaque and her gums were red. he cleaned them, gave me some antibiotics for her, and told me that in the future, she would need to have several teeth removed because they had lesions which would result in more plaque bulid up. everything went fine, gave her the antibiotics and her gums were healthy. i was planning to make an appointment to have her teeth removed, when last night, i noticed her gums are alot worse than before. what's wrong w/her and could the vet remove her teeth and take care of her gums @ the same time?
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She may also have an underlying herpes infection, which can be HELPED with 150 mg of L Lysine 2x a day for about 10 days (but no longer than 2 weeks at a time). Other than that, she DOES have Gingivitis, and as far as the diagnosis of needing to have teeth removed, sometimes that diagnosis is a false alarm (been there, done that with my Cee Cee cat) after the teeth have been cleaned and examined. HOWEVER, go with what your vet diagnoses, once he sees her again.
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