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Greetings of the day
It is likely to be due to Cervicitis
related to procedure because o trauma of biopsy
and chemical irritation by Vinegar.
may be helpful to relieve the pain.
There is no cause for concern if there is no foul smelling discharge or fever.
In case you need any further assistance, will be glad to assist you.
Wishing you happy and healthy life
Dr Deepak K K