If you are having trouble's with your allergies you might just try taking some benadryl...I take it and it hasn't affected my supply or the baby...She just slept a lil bit longer for her nap but I usually just took it at night before I went to bed...

there are several different things that you can take, but they can all dry you up or decrease your milk supply i would suggest taking fenugreek or maybe blessed thistle with this if possible so your milk supply stays plentiful.........

I would avoid any antihistamines or decongestants at all costs! When I was bf-ing my first born, I got a cold and took cold meds for a few days, and then poof! suddenly he had a "growth spurt" that my body was never able to catch up with, and that's when my unplanned weaning began. :( Try saline spray, Vicks inhalers, hot steamy showers, air purifiers, HEPA filters, ANYTHING other than drugs. Of course, everyone's different, but that's been my experience. Good luck!

Thanks for the replies on this, but I weaned Chloe from BFing. She came down with a bad cold and was having a hard time breathing while nursing and I couldn't get her in a good position, so she was slowly takin more formula than breastmilk, so I stopped about 2 weeks ago.

I do have to say, I made it 7 months with DD1, 3 months with DD2 and 5 months with DD3 and it's nice to have my boobs be mine again!! LOL

I talked to the nurses at the Breast feeding store and the top 3 things they say will dry your milk up is decongestants and anthistamines, sage, peppermint. Three things to help increase your milk supply, oatmeal, chocolate, and yes coffee. Not a ton but caffeine helps make milk.
and chocolate is always a plus as far as i'm concerned...lol