Before starting treatment with Asmanex HFA, talk to your doctor:, About all the medications you take, About your allergies, About your medical history and conditions, If you are pregnant or have to plans to become pregnant, If you are breastfeeding or have plans to breastfeed, Fungal infections of the mouth and throat can be caused by the use of Asmanex HFA. It is recommended to rinse your mouth with water and spit it out after each use., Asmanex HFA may worsen the symptoms of tuberculosis, fungal, bacterial, viral, or parasitic infections or herpes simplex of the eye. Chickenpox or measles that can become severe or fatal can occur in patients who are susceptible., Asmanex HFA can cause hypercorticism and adrenal suppression. If these occur, your doctor may decide to take you off Asmanex HFA slowly., Use caution when using Asmanex HFA with strong cytochrome P450 3A4 inhibitors. Ask your doctor if you are unsure whether or not you take these medications., Paradoxical bronchospasm can occur during the use of Asmanex HFA. If this occurs, your doctor may stop treatment with Asmanex HFA and start a different treatment., Serious allergic reactions can occur with the use of Asmanex HFA. Seek emergency care immediately if you develop a rash, trouble breathing, itching, or swelling of the face, lips, tongue, or throat., Asmanex HFA can cause bone mineral density loss., Growth should be monitored in pediatric patients who use Asmanex HFA., Asmanex HFA can cause vision problems such as glaucoma and cataracts. About all the medications you take, About your allergies, About your medical history and conditions, If you are pregnant or have to plans to become pregnant, If you are breastfeeding or have plans to breastfeed