decompression sickness

the best way to avoid decompression sickness is still:
1. Don't dive too deep
2. Don't ascend too fast
3. Check with your computer for multiple dives
4. Always make a safety stop for at least 3 minutes and do all necessary decompression stops
5. Drink a lot of water (to avoid dehydration - 3 liters of water per day minimum, some say up to 10 liters in the tropics!).