N.H.
Along with the other info the moms gave (WATER, diet, exercise), maybe try a good probiotic? Sometimes the GI tract isn't working because there isn't enough good bacteria in it to help 'process' things; especially after a round of antibiotics. Also gentle massage (circular motion as if you are following the large intestine as it empties) and reflexology. The one I used when pregnant was the point at the dip just below the lip/above the chin. I used both gentle massage and reflexology when I was pregnant and constipated. Worked like a charm.