As an avid contact wearer, I use saline solution to rinse my contacts daily before each use. Recently, a friend told me that many commercial saline solutions contain preservatives, which could affect the overall health of my eye. Is this something I should be concerned about? The saline I use has always felt comfortable so I never thought it could pose a problem.

I go through phases where, when I sleep, I don't have any dreams (that I remember, at least). I sleep well and I wake up rested. Every few months I go through a week or two when I have nights full of incredibly vivid dreams and I wake up remembering at least five or six of them. Because of all these vivid dreams, I wake up feeling far less rested than I do when I don’t dream at all. Is there a particular reason for this? Does dreaming more at night mean your sleep is less restful?

1) For like several years I have been afflicted with a really smelly crotch. It's like I sweat a lot down there and it just has a really sweaty vaginal odor. I bathe regularly but nothing really helps; by the end of the day I always smell funky. This wouldn't gross me out if it was just an occasional problem, but it happens every day. What can I do?

2) I have an embarrassing odor problem in the crotch area due to sweating. The odor is the same as underarm body odor. FDS didn't seem to help any. Cornstarch and powders work for about an hour. I wear only cotton panties. It seems that gel deodorants (Mitchum/Soft & Dri) are the only products that will control the odor for more than one hour (not long enough). Is using antiperspirants/deodorants harmful to my body (I do not use it in the clitoral/vaginal region, only on the "mound" of hair)? Also, how can I eliminate this sweating? My friends don't seem to have this problem. I am 32 and the problem seems to worsen each year.

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.

Is it bad to chew sugar-free gum? I heard the chemicals in them are bad for you to ingest?

I was hoping to wear plugs. You know, the earrings...but do they hurt when you put them in?

What is wrong with my face? It permanently looks sunburnt across my nose, cheeks and on my chin. Sometimes it appears worse than others. It is hot to touch and often bleeds. Typical rosacea treatments do not improve the redness or pain. I'm overweight but otherwise healthy. Thanks!