Allergy Survival Guide: 10 Tips From A Top Doctor

CBSNEWS - There have been plenty of alarming reports this spring about the "pollen tsunami" sweeping America, and millions of people are suffering through one of the worst allergy seasons in memory.

"It's really bad," Dr. Neeta Ogden, an allergy specialist and spokesperson for the American College of Allergy, Asthma and Immunology, told CBS News. "There are people with new symptoms for the first time."

Over-the-counter or prescription allergy medications can help with the symptoms, but for many people they're just not enough. "I think that because it's such a bad pollen season, I'm seeing a lot of people who are maxed out on the meds," Ogden said.

She offered some practical advice to reduce the sniffling, sneezing and wheezing that can make springtime so miserable.

Get out of those clothes

The first thing to do when you get home? Take off the clothes you've worn outside all day. Otherwise, Ogden warns, you'll be tracking pollen around the house and prolonging your exposure.

Shower

Ogden recommends taking a shower and washing your hair as soon as you get home. You definitely don't want to go to bed covered in pollen. "If you put your head on your pillow and sleep all night, that's what's going to trigger a reaction," she said.

Wipes or saline wash

A shower alone may not be enough. Ogden also recommends using a saline wash to rinse the eyes and nose before bed. "Some of my patients use eyelid wipes, like baby wipes," she says. "The whole idea is to reduce pollen exposure."

HEPA Air Purifier

An air purifier can help reduce allergens in your home. "I tell people to invest in an air purifier. A small one can be good, but they have to be HEPA," Ogden said. HEPA, or High-Efficiency Particulate Arrestance filters, remove 99 percent of airborne particles such as pollen and other irritants. "Maybe even get one for your desk at work," Ogden suggests.

Stay hydrated

Be sure you're drinking enough fluids to stay hydrated during allergy season. "Studies have shown that when you're dehydrated your body produces higher histamine levels and that drives allergies," Ogden said. "When you get dehydrated you could run risk of making your symptoms worse." And it can be a vicious cycle, because the decongestants many people take for allergies can dry you out.

Drinking plenty of water is essential, but Ogden says you need to replenish electrolytes, too. She suggests keeping packets of a hydration powder like DripDrop handy to add to your water for an extra boost of electrolytes.

Vitamins & supplements

There's growing evidence that vitamins and minerals can have an impact on allergies. Ogden says vitamin D and Omega 3, found in fish oil, may help.

"A number of studies have shown that when they're incorporated into the diet, there's a decrease in allergy and asthma symptoms," she said. "I have had patients say, 'Oh, I went back on my vitamin D and my allergies improved.'"

Hose down the dog

Man's best friend can be your worst enemy when it comes to allergies. Dogs can track pollen all over the house.

"Dogs, especially with lots of fur, long hair, are going to need to be hosed off or bathed" whenever they've been playing outside, Ogden said. Wear a mask and gloves while bathing the dog, or better yet, "if there's someone at home who doesn't have allergies -- make them do it."

Dress for protection

You can help shield yourself from pollen exposure by wearing a hat and sunglasses outdoors. Ogden recommends "big sunglasses -- it's just about protecting your face -- and a hat to keep pollen out of your hair and off your face."

Use Vaseline to “trap” pollen

Ogden suggests applying a thin coat of Aquaphor or Vaseline around the rim of your nostrils as a way to "trap" pollen and keep it from entering the mucous membranes of the nose, where it can cause irritation.

Plan your activities 

Dawn and dusk tend to be the worst times of day for allergies, so try to plan your outdoor activities around them. Check pollen counts online before you go out, and take extra precautions or minimize your time outside when conditions are especially bad.

Dyson unveils next-generation air purifier

The Pure Cool has a 360-degree filter

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Not content with vacuums and fans, Dyson is expanding into the realm of air purification with its Pure Cool purifier fan, which was unveiled today. Building on the company's Air Multiplier technology, it's designed to capture ultrafine particles, which are a major component of air pollution. To learn more, Gizmag talked to Dyson engineer Robert Green.

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According to Green, the Pure Cool is aimed initially at Asian markets, such as China, where air pollution is a major problem. We tend to think of air pollution as being either gases like carbon monoxide, or large, obvious solids, like soot, but it's the microscopic particles suspended in the atmosphere that are among the biggest hazards. That's because ultrafine particles can penetrate the lung's membranes and cause major damage to the cardiopulmonary system.

Green admits that the Pure Cool isn't the first air purifier on the market. In fact, purifiers are major sellers in Asia, but he claims that the Dyson purifier is one up because of the technology crossover from the company's other products.

"The filtration system in an air purifier is not that dissimilar to the HEPA filters that you'll see in a vacuum cleaner," says Green. "So it was a logical step for us to take that technology from our vacuum cleaner and apply it to our Air Multiplier range to give us this purifier product."

The Dyson Pure Cool looks very similar to the company's bladeless fans, but it differs in that it includes a 360-degree glass HEPA filter to trap ultrafine particles. The filter is made of borosilicate microfibers set in a "bird's nest" design with a wrap-around configuration to provide a much larger surface area than previous filters of similar size.

Behind this borosilicate filter is an active carbon layer to remove odors, fumes, and vapors and, unlike other systems, this active layer is an integral part of the replaceable filter. Green says that this integrated design is a first and produces a more efficient filter that only needs replacing once every 12 months. He adds that Dyson has made this economically viable thanks to piggybacking on the company's vacuum cleaner manufacturing and supply infrastructure.

In a press release, Dyson says that the Pure Cool removes 99.95 percent of ultrafine particles as small as 0.1 microns and that is was put through a series of tests, including the smoke from 228 cigarettes, and still maintained performance.

In addition, the Pure Cool is capable of handling any size room, though larger spaces require longer filtration times. Green says that the current unit can filter a 13 sq m (140 sq ft) room in about 25 minutes.

The Dyson Pure Cool is available in Japan and China and will roll out in other markets later this year. No price has been set yet.

Source: Dyson