Oxytetracycline causing rash ?

I've been using antibiotics to treat some mild, but stubborn adult acne (I'm 21 and started getting acne about a year ago, never suffered from it before).
The antibiotics are oxytetracycline, subscribed by my doctor. I've been on that for the last 5 weeks, two tablets two times a day.
It hasn't helped much before recently (the last couple of days).
However, I've also been developing this rash/itching on my testicles.
It kind of sounds worse than it is though.
When it first started appearing about two days ago, I just noticed I was scratching my testicles in my sleep, because they were itching. When I inspected them, I discovered I had some quite dry and peeling skin. The itching has actually disappeared, but the skin is still very dry and peeling. However, it doesn't look bad at all. When I apply some jojoba oil mixed with a smooth moisturizer, you can't even tell there is something wrong.
At first I though I might have wet my bed or something, and that it causing the trouble.
Then I thought it might be the shaving, but suddenly I thought about the link with the antibiotics.

It is really mild, but it sounds like too much of a coincidence to not be linked.
What do you think? Should I see my doctor? Get of those pills?

It's annoying, because I feel I've started a bad spiral of medications now, because of some really mild acne cause.
I've always been really healthy, and my immune system is epic (knock woods).
I've almost never been to the doctor before, and normally my body wears off all kinds of stuff really quickly. I think this is the first medication I've ever been on in my life.

Any advice will be much appreciated.