After you've gone a year without a period you do not have to worry about birth control. However, the decreasing levels of estrogen can lead to dryness in the vagina, which may affect your comfort and enjoyment during intercourse. If it's only a little dryness, lubricants for intercourse can be very helpful. There are many brands on the market, and you should try different ones to see how they feel. My favorite brand is Astroglide.
Many women benefit by boosting their estrogen levels a bit.
This can be done one of several ways. Most women who take estrogen in the form of tablets or patches find that their vaginas feel moister. Women may also try the Estring, a small, soft plastic ring coated with estrogen that is placed in the vagina, just like a diaphragm. It gradually releases tiny amounts of estrogen to maintain vaginal lubrication. It can be left in place for three months at a time and is quite comfortable, even during intercourse.