How much contacts cost depends on many factors, including your contact lens prescription, the type of contacts you choose and where you buy them. Other factors that can affect your contact lens costs include manufacturer rebates, discounts for buying a year's supply at once and how frequently you replace your lenses. Because many factors affect contact lens cost and prices frequently change, it's difficult to describe lens costs accurately. But generally speaking, if you are nearsighted and are prescribed a popular brand of disposable soft contact lenses, these lenses frequently are sold at a retail price of $22 to $26 for a box of six lenses.
The cramping that usually accompanies the menstrual period is the primary cause of this upset stomach and it can occur before, during or after a womanâs period. However, this nausea could also be caused by excess stomach acid that comes from the changes and imbalance in hormones during the menstrual cycle.
What causes heartburn during pregnancy? Heartburn occurs when the valve between the stomach and the esophagus are unable to prevent stomach acid from passing back into the esophagus. During pregnancy, the hormone progesterone causes the valve to relax, which can increase the frequency of heartburn. This allows stomach acid to pass into the esophagus and irritate the lining. Heartburn and indigestion are more common during the third trimester because the growing uterus puts pressure on the intestines and the stomach. The pressure on the stomach may also push contents back up into the esophagus.