Hello and welcome to HCM
You have mentioned that you have two swellings on the nipple, with pressure feeling and pulsating pain in them.
Pulsating pain is associated with abscess
An abscess is collection of pus resulting from bacterial infection.
of pus and oral antibiotics
are treament of choice.
Swellings can also be subjected to fine needle aspiration cytology however, it may not be possible in painful situation.
However, examintion is required for correct diagnosis.
Consult your doctor at the earliest.
Dr Shailja P Wahal