Get them done at a piercing salon by someone who knows what they are doing. I got mine done at a hair salon, using a piercing "gun". Although I followed all instructions, the hole closed up. Apparently the gun doesn't do that good a job.
I then went to a tattoo/piercing salon to have them fixed. The guy looked scary, and I had to listen to rap music while he worked. But he was a stickler for cleanliness, even changing his gloves between ears. He used needles to repair the holes, and I have had no trouble since.
I totally love the look of earrings, and I have at least a set of silver studs in them at all times. I put them in when I get up in the morning, and don't take them out until I go to bed at night. I only take them out when I want to wear something fancier.
You'll love them.