Antibiotics and Milk Supply

Addie

So my doctor put me on dicloxacill because I have something up with my left breast. I'm frankly not convinced it's mastitis but he seems to think it is. That's not the point though! I've noticed my milk supply is going down. Usually after a feeding I could pump and get about 8oz combined. Now I'm down to maybe 6oz and I'm not filling up again very quickly. My daughter seems to have noticed too and doesn't seem thrilled that she's not getting as much as easily as usual. I don't know what to do. Help!