Oregano, Sage, and Thyme Essential Oils. Oregano, sage, and thyme have all been found to be useful anti-inflammatories in both their powdered and oil forms.5 They work by both reducing the bodyâs production of pro-inflammatory compounds and by increasing its production of anti-inflammatory compounds.
1 Placenta previa is more common early in pregnancy and might resolve as the uterus grows. Placenta previa can cause severe vaginal bleeding before or during delivery. A C-section delivery usually is required if the placenta previa is present at the time of delivery.  Placenta accreta.
1 Marginal placenta previa refers to a placenta that is located adjacent to, but not covering, the cervical opening. 2  The term low-lying placenta or low placenta has been used to refer both to placenta previa and marginal placenta previa.