A catheter was inserted in my vagina and not urethra. i now have what seems like ulcers in my vagina which is really painfull especially when i sit down. when i urinate the urine burns the ulcers a lot?

Genital ulcers: It is difficult to understand how mis-inserting a catheter into the vagina could cause ulcers or pain. The problem may not have been caused by the catheter. The most common cause of painful genital ulcers is genital herpes; also other viral infections; severe yeast infection; allergic reaction, e.g. a vaginal hygine product. See a doctor ASAP for diagnosis and treatment. Good luck.

See MD or Gyn: catheters are usually soft and do not cause trauma. See your Gyn or MD