Do plant-based sunscreens work?

Recently I bought a sun protection cream from a health food store. The cream claims to provide sun protection (it's labeled SPF 15) by a plant complex made of PABA, willow bark extract, myrtle and myrtus leaf extract. It says that myrtle and myrtus leaf help protect from both UVA and UVB.

My questions are as follows:

1) Can this PABA complex provide the sun protection it claims (SPF 15 for both UVA and UVB rays)? The reason I am asking this is because until now I had only heard of sun protection by titanium dioxide or chemicals like octyl mexaoxycinnamate (did I get it right?). So I am curious to find out.

2) I notice a slight burning sensation in my eyes after I apply the product on my face. Is it true that PABA is a common irritant? (Since I notice many products proudly claiming PABA-free I wonder if it's really not good for you.)

Please help. I hope this question falls within your realm of expertise. After all, you are the 'know it all' around here, aren't you?


Who will see my STI test results?

I have been thinking about getting tested for STIs for a while now but have been concerned with medical privacy policy. From the research I have done, I have not been able to find if I tested positive for an STI would I be referred to in name as a 'risk to public safety' or simply as a statistic. I know that this will be placed in my medical records and documented for the rest of my life. Will I have a label attached to my name for the rest of my life? Who will be notified if I do test positive for something like syphilis or herpes?


What should I do to avoid getting an erection during a massage?

I'm a thirty-something man who has a happy but often stressful life. I'd like to get a massage every now and then, but I'm worried about what might happen when I'm virtually naked and being rubbed all over by another person. In other words, I'm worried about getting an erection during a massage. It seems like there would be no way to hide it.

How do I deal with this? How do masseuses deal with this when it happens? Do they expect their male clients to get aroused? Would they think I'm perverted when I'm lying on the table and standing at attention?


Is there a connection between soy products and male impotence?

I once read an article stating the soy products (espcially soy milk) can lead to impotence within males if taken to a high degree. I go through random bouts in my life where I cut out cow milk completely and drink just soy milk for long periods of time (not because I'm lactose intolerant but for argued health benefits). I'm just wondering whether drinking strictly soy milk every day (at least 3 10-oz. glasses for me) is overkill.