drop in supply

Amanda
Last week I ended up at the dr with mastitis! Was put on doxycycline for 10 days..before that was pumping about 4-5 oz per side.. in the last day or so I can only get 2 oz out?!? Could it be the baby is out of a growth spurt and doesn't need as much right now? He is 8 weeks. Or is it due to the antibiotic? Is power pumping my best  option?