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.
Most women use one of three types of vaginal estrogen: 1  Vaginal estrogen ring (Estring). You or your doctor inserts this soft, flexible ring into the vagina. 2  Vaginal estrogen tablet (Vagifem). You use a disposable applicator to insert a tablet into your vagina once a day for the first two weeks of treatment.