I have been back to the GP today as DD3 has horrific thrush.. I have thrush in the breast and have just been prescribed a two week course of fluconazole.... DD3 has been really ill as a result of the anti-biotics i was given for mastitis... GP has said that i shouldn't feed her whilst on fluconazole... am gutted but also slightly relieved as my breasts are so sore and i am so tired with expressing for 12 times a day.....