In a study of fluconazole for treatment of lactation-associated thrush of the breasts, mothers took an average of 7.3 capsules (range 1 to 29 capsules) of 150 mg every other day until pain resolved. Seven of the 96 women reported side effects possibly caused by fluconazole in their breastfed infants. These included flushed cheeks, gastrointestinal upset, and runny or mucous stools.[7]