Managing persistent gas with an ileostomy can be a bit challenging, but there are several strategies that might help ease the situation. If you're experiencing frequent and rapid ballooning of your pouch due to gas, here are some suggestions that might be worth trying:

1. Dietary focus
- Gas production is a natural part of digestion and is largely influenced by what you eat. Everyone's tolerance to different foods can vary.
- Consider exploring diet-related discussions in forums or doing some online research to pinpoint foods that might be causing excess gas. For instance, some people find that foods like broccoli can be a trigger.

2. Probiotics
- Some have found that taking a high-quality probiotic, particularly one containing Acidophilus/Bifidum, can significantly reduce gas over time, even without changing their diet.

3. Pouch technology
- Look into whether vented ileostomy pouches are available. These pouches, similar to those used for colostomies, might help by allowing continuous gas release, which could reduce ballooning.

4. Practical measures
- Try emptying your pouch more frequently when you notice gas buildup. While this won't stop gas from forming, it can help prevent the pouch from ballooning too much.