How many days does it take for your clogged ducts to clear?

I am pretty much a sobbing mess trying to massage my boob. I also have a fever so I am on antibiotics. Please tell me its only a day or so??

I already have low supply (only about 4 oz a day, despite pumping every 3 hours for 2 weeks), and we are supplementing with formula. This makes me want to quit as soon as its unclogged.