Before you begin treatment with Diflucan, talk to your doctor about:, All the medications you take, Your allergies, Your health history and current health problems, Your pregnancy or breastfeeding status, Serious allergic reactions, including anaphylaxis, can occur with Diflucan therapy. Seek emergency care immediately if you have trouble breathing, a rash, or swelling of your face, lips, tongue, or throat., Liver injury can occur; therefore, use Diflucan with caution if you have liver problems., Diflucan can cause harm to an unborn baby; therefore, effective birth control should be used in women of child-bearing age who are taking Diflucan. All the medications you take, Your allergies, Your health history and current health problems, Your pregnancy or breastfeeding status