What measures can prevent corneal abrasions? A corneal abrasion is a scraped, scratched, or torn area of the corneal surface (named the epithelium), usually resulting from an injury such as a finger in the eye, a tree branch, flying glass, or damage from a contact lens.n many cases, depending on the severity, the cornea will heal completely in 24 to 48 hours, leaving no permanent damage. However, if the pain is severe or persistent, contact an eye doctor to decide if treatment is required.
Cyclic Use (3 weeks on, 1 week off): Once you insert the ring, you should leave it in place for 3 weeks in a row. After 3 full weeks, you will remove the ring for 1 week before you start your next cycle. You will most likely get your period during the âring-freeâ week. This is the (7 day) break in between cycles when you are not using the ring. Your period will likely come 2-3 days after you take the ring out of your vagina.
In the first cycle of Nuva Ring, you can put the ring on the first day of your period for immediate protection from pregnancy. You can put it in any other day of your cycle as well, but then need to use a back up method (like condoms or abstinence from vaginal sex) for seven days. In later cycles using Nuva Ring, you put it in on schedule, a week after you took out the last one, on the same day of the week that you took the last one out.