Did she ask the company who painted the house. Most paints are not real bad unless it could be not waterbased paints.

Here are some ideas:

Deodorize With Charcoal

Charcoal is a tried-and-true odor removal technique that can be used to deodorize any powerful chemical odor. It's an excellent room deodorizer because of its large surface area, and its odor-adsorbent qualities. You can use activated carbon, but ordinary cooking charcoal is usually enough to remove the solvent odors from a freshly-painted room. Here's how you can use charcoal to remove the paint smell from a room:

â¢Lightly crush whole pieces of wood charcoal into small pieces. It's OK to pulverize the charcoal into fine powder, but the particles may float around and stick to the wet paint.
â¢Place the charcoal pieces inside a bucket together with some pieces of wet paper towels or rags.
â¢Place the bucket in the middle of the room and leave it there overnight. The charcoal will then absorb the odors and fumes from the solvent, leaving you with a fresh-smelling room the next day.
Light a Candle
One time-tested way to get rid of solvent fumes from a freshly-painted room is to light a candle or a match to burn out the fumes. A trick used by many veteran house painters is to light a candle in the middle of the room and let it stay there for about three hours. The open flame will burn out the flammable substances in the solvent, like benzene and other hydrocarbons.

Candles and matches still pose a potential fire hazard, especially if you've just painted an enclosed space. To minimize the risk of fire, place the candle on top of a bowl or a saucer of water to catch the hot wax, and prevent fire from spreading. It may also help to make a small dome out of wire netting to catch candle soot, especially if you've painted your ceiling.

Use a Bucket of Water
If you don't want to risk a fire hazard by lighting a candle to burn off the fumes, you can simply place a few buckets of water in the middle and around the room to absorb the solvent vapors. While not as effective as a candle, it is a safer option especially if you're painting a room finished or made with wood. The odors will be removed overnight, although you'll still have a faint smell of solvent that will linger and will go away in time.

Dish of vinegar or vanilla. Large bowls if she had a lot of painting done.

All the Truck Divers i know have the secret to fresh smelling trailers. I don't care what they have carried, or spilled, they open a whole can of the cheapest coffee they can find and throw it around on the trailer floor, shut the doors, and drive. By the time they get even 45 minutes away they can open the doors and sweep up the former smell.

My DM learned this trick from the Drivers she came into contact with in the company's shipping dept. and then started using it in the household fridge, closets, my teenage DB's shoes, the kitchen after frying fish, painting a room.... She just sets a tablespoon or two out in something she can throw away; paper cup, coffee filter, paper desert plates, and in a little while the house smells fresh as a daisy.

Also you need ventilation. If possible, keep a few windows open.