My best advice:
Fly Helicopters. No G's to fvck you up. I was in the same boat, and battled airsickness all through Primary. 7 pinksheets, and a TON of "elimination rides"... but once I got to the HT's and started with the rotors... I never even felt queasy once.
I lost 20 pounds in the first month on the flightline... couldn't keep any food down. I basically lived on Boost/Ensure, bananas, and almonds. If it comes down to it, and you're flying enough that you are feeling ill and losing you're stomach once or twice a day... the Almonds and Boost give you protein you need... if you can stomach bagels and breads they're good for you, but they always came up on me too... and they were painful.
Banana's and those chocolate-meal-replacement shakes are awesome... because even if they come up on you... they taste the same and have the same consistency as when they went down. Laugh if you like guys, but when you're getting sick once or twice a day, your throat is constantly sore.
The long and short of it is... yes, eventually it goes away. It was not near so bad for me for my last 10 flights or so in primary... but it was always there a little... for some people (or most people) it did go away completely eventually. I just never could handle a small fixed wing for some reason. I chose to stick it out, and even when it was really rough... and I wanted to quite... I made the decision they were going to have to wash me out. You need to keep a positive mindset, and it's hard through airsickness... but keep your eyes on the prize.
PM me if you need any more help... and P.S. Ginger pill's dont do shit except make your puke taste rancid