I think I may have some kind of urinary tract infection. It came on very suddenly, about three nights ago. And when I pee, there is a burning sensation when my bladder has almost emptied. It's not an STD because I'm in a monogamous relationship, and yes, I'm sure! Please help. Thank you.

About six months ago, I experienced pain when urinating after having intercourse. Typically, I have pain/burning the first time I urinate after sex, but then the pain tends to go away or diminish. I am a 38-year-old male. I have no pain otherwise.

I read that disposable contact lenses are actually worse for your eyes than the normal one-year ones because they allow less oxygen to go to your eyes, and the only advantage is that there are less cleansing problems. Also, it is claimed that inadequate oxygen to your eyes (possibly caused by prolonged wearing of contact lenses) leads to a condition when extra blood vessels sprout around the iris, which leads to sight problems at old age. Is that true?

I am very concerned because I normally wear (one-year) contact lenses from 8am to 8pm, and maybe to 12am during reading periods. I don't feel very comfortable with glasses because they give distorted visions and fatigue. I thought switching to disposable contact lenses would do my eyes good. My current lenses contain 38 percent water. Is this good enough?

If a guy has jock itch, can it be passed on to a woman in the form of a yeast infection during sexual intercourse? I had intercourse with a guy and he had jock itch. A few days later I got a vaginal yeast infection. Could there be a connection?

Dear Alice,

Is it dangerous to sleep in your soft disposable contact lenses for one night if you can't get them out?

My eyes are light-brown, and when I've been crying or when it's bright outside they look greenish. I want my eyes to be that greenish all the time. I heard that putting honey in your eyes will lighten them. Are there any side effects? Is it bad for my eyes?

I am a 26-year-old female and have started getting a yeast infection every month without fail at the end of my period. This started about a year ago and I've cut back on eating bread, I don't eat much sugar and I rarely drink beer. I read online that someone recommended using a douche just before and after starting my period. Is this a reasonable thing to try? I've always been very opposed to douching but I'm sick of the itching and don't want to have to take medication or use cream every month. Any suggestions?

I find it relaxing, along with rubbing my face, to rub my eyeballs (with my eyelids closed, of course). It feels good to massage the muscles and squeeze out the air that builds up back there. Is this safe? Do I risk deforming my eyeballs and changing my vision?

I recently saw a health show on TV that said you should wear darker sunglasses because they filter more light. Previously, I had heard that darker sunglasses cause the pupil to open wider and make the eyes more vulnerable to harmful light; ergo, you should wear lighter sunglasses with good UV protection. I have very light colored eyes, so my eyes are especially vulnerable to harmful light anyway, which is why I really want to get this right. Can you give me a definitive answer on this one?