If the bloating is not from gas is this from water retention?  Bloating is generally from gas from fermentation or water retention. Has she been constipated?

 The flu dehydrates. She probably needs to drink more water AND get her electrolytes in balance. I would make sure she had enough water, salt, potassium and magnesium.

Water Rids The Bloating Effect

If you're not drinking enough water throughout the day, this can cause unnecessary bloating.

Water has so many health benefits. Not only does it help with digestion and retards bloating, but it supports so many of the body's daily functions.

If you are a person that has a hard time drinking any water, start off by drinking one or two glasses per day.

Carry a bottle with you or leave one on your desk at work. Gradually work your way up to the 8 glasses.

Lisa's Tip: Here's what I do to ensure I drink my daily allowance of water:

I have two 32 ounce bottles - one at home and one at work (totals 64 ounces which is equivalent to 8 glasses).

I drink half of the 1st bottle at home before I leave for work (16 ounces). At work, I drink the entire 32 ounces throughout the 8-hour day.

Then when I get home I drink the remaining 16 ounces left in the bottle that I leave at home.

If you section off your drinking throughout the day, it doesn't seem so overwhelming. Then once you get used to drinking lots of water, it becomes easier and easier to drink your 8 glasses each day.

If you're concerned about having to go the bathroom constantly, I can tell you that once your body gets used to you drinking lots of water, your trips will become less frequent.

I also try not to drink any water after 7pm. This keeps me from having to make those nightly trips to the restroom.

Chewing Gum & Bloating

I just learned this recently, but chewing gum can actually cause your stomach to swell. This is because when you chew you're swallowing large amounts of air that goes right to the tummy.

Also, if you chew sugarless gum that contains artificial sweetener, this can also cause bloating because your body cannot break down the artificial substitutes as easily, thus causing gas.

I bet you never though chewing gum could do such a thing. ;)

Fatty Foods

Not only do fatty foods cause the formation of fat cells all over your body, but they also contribute to bloating because they can delay the process of emptying your stomach.

That's why so many people have that uncomfortable feeling after a big Thanksgiving meal. All that fat and grease is just marinating in your stomach trying to find a way to digest.

Drinking water can help tremendously with this kind of bloating problem because it gets things moving! :)

Dairy Products

Dairy products can be a big culprit for bloating - especially those of you who are lactose intolerant.

If you have stomach cramps, gas, diarrhea and bloating after consuming ice cream, milk or other kinds of dairy products then these are all signs of someone who is lactose intolerant.

Even if you are not suffering from that condition you still may find that dairy products can cause your stomach to bloat more than other foods.

Again, drinking water after consuming dairy foods can help with the bloating effect.

Fennel Tea Helps Bloating

Fennel tea is an organic tea that is very effective for eliminating gas and bloating by relaxing the gut and relieving spasms in the GI tract. It's especially good for IBS sufferers.

I have had issues with indigestion all my life and finally got a hold of some fennel tea. It is amazing! After only one cup I could immediately tell the difference. Fennel tea is now a part of my regular diet