Four days ago I finished antibiotics for cervisitis, vaginosis, and a fungal infection, no I am having a burning, itchy, brown clumpy discharge. My question is, Why are the symptoms occuring after and what could this be?
It's very possible it could be a yeast infection. I know that depending on the antibiotics I take (namely those for a UTI) I get yeast infections. You can talk to your doctor and make sure you didn't have an adverse reaction or get an infection from the medicines you were on.
Antibiotics are only effective against bacterial infections, and many types of bacteria are extremely resistant to treatment. The infection could also be non-bacterial in origin (for example yeast).
You should request your physician take a culture to determine the nature of the infection.