Great White shark trophic PYRAMID: 1  Trophic Pyramid Information that is in video: An ecological pyramid (also trophic pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or biomass productivity at each trophic level in a given ecosystem.
For a vaginal yeast infection that recurs within 2 months of treatment, or four times in 1 year (recurrent vaginal yeast infection), see your doctor. Further testing or a different treatment may be needed. If you have been using a nonprescription medicine for your vaginal symptoms, be sure to tell your doctor.
Do notself-treat a vaginal yeast infection if you: 1  Are pregnant. 2  Are not sure your symptoms are caused by a vaginal yeast infection. 3  Have been exposed to a sexually transmitted infection (STI), which would require a medical exam.  Are having a recurrent infection.