blocked duct, hard white discharge, unbearable pain

Hi,
Welcome to ehealthforum,
If the symptoms have persisted or have become worse, you should consider visiting your doctor/gynecologist at the earliest for examination and further evaluation to look at the current status. It might require minor surgical procedure for draining the blocked duct (depending on the examination findings and investigation results). Treatment as needed (based on examination findings and investigations results) would be started to help you control the symptoms. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately.
Take care.