Burning sensation, itch, soreness started 2 hours after pap smear done 2 days ago. No allergy to KY jelly used. No infection prior. Cause?

Go see your doctor. You need to go and see your doctor. It could represent a yeast infection, it could represent an allergic reaction to the lubricant, or the gloves of the examiner. Your doctor needs to examine the area as well as get more information from you to determine what is wrong. Hope this helps.
Allergy. May be allergy to gloves used ( i.E latex).See your doctor if persists. It may also be a new infection (yeast).