1) I'm a young gay man, and I'm concerned about oral sex and HIV. What are the risks, statistically and in your opinion, of receiving oral sex without a condom? Also, and this will sound kind of funny, I have braces, so I'm assuming giving head is dangerous.

2) A couple of weeks ago, my girlfriend and I were having oral sex and... well, to make a long story short, my penis got "snagged" on her braces and I received a deep cut on the head. I put Neosporin on it every night for a week, but the cut doesn't seem to be healing very quickly. I don't want to go to Health Services because of the embarrassing nature of the problem.

Help me quickly, please, because it also is very painful to urinate, let alone have any sexual activity. I was also wondering if there was a risk in contracting any STDs from this occurrence. I would really appreciate any advice you can give me.

How and what does the human body do with the petroleum based skin products we apply to our bodies on a daily basis? I'm sure a lot of these products are absorbed through the skin. What does the human body do with them? Can it break them down? Do they just flush through our systems? What happens after they are absorbed? What are the long-term effects of using these products? What are the health risks?

1) You know when you get a cold and you have to blow your nose a lot and it gets all sore from rubbing it over and over again with a Kleenex? Do you know of any kind of cream or something that you can put on your nose to help soothe the soreness caused by frequent nose blowing? Any suggestions would be greatly appreciated.

2) I am a 16 year old girl who isn't very good at blowing her nose. I can blow the air down hard enough, but nobody has ever taught me a good technique for a proper clear-out. What is the best way to hold your nose in the tissue to get a really good nose-blow? How would you recommend I try to blow my nose?

I am training for a half marathon and am experiencing chafing from my sports bra on my sternum area. I have tried using Vaseline, band aids, etc. to prevent it, but nothing seems to work. Any suggestions?

How can having multiple sex partners be a risk factor for cervical cancer? What is the difference between having sex with one man one thousand times and sex with one thousand men (not that I'm planning to!) one time?

For about two months now my whole body had been itchy and will sometimes break out into a rash. I tried switching soaps and laundry detergent; I just don't know what it is. It's on my arms, legs, back, inner thighs, feet, etc. I'm scared and really want to find out what's wrong and stop itching.

I've noticed what appears to be a wrist bone protruding on the back of my right hand. It's on the thumb side and closest to my forearm bones. I've been playing a lot of golf lately, and someone told me it was a "golf nodule." If so, what are golf nodules? Is this dangerous (it doesn't hurt right now), and do I need to do anything about it?

Please help! My skin is drying out like you would never believe. It is scaly and itchy at times. Could this be as a result of the weather? Are there any pointers that you could give me so that I don't feel like my face is cracking and looking like garbage? It seems to get worse after I shower. What is this? What can I do?