The significance of a food allergy test cannot be interpreted out of context. For example, if you had a life-threatening anaphylactic reaction to peanuts but the food allergy test was negative, it would not nec... continue reading  about  I had a food allergy test about five years ago. All the tests came back negative. How long are the tests reliable? Can I still get a new food allergy in the future?

Dust mite allergy is diagnosed by obtaining a positive history (yours sounds suspicious) and having a positive allergy test (skin or blood) to dust mite. Pollen (plant) allergy would have similar symptoms but w... continue reading  about  How would I know if I have a dust mite allergy? Sometimes when I'm cleaning the house my eyes start to itch, I sneeze, and my asthma kicks in. How would this type of allergic reaction differ from a plant allergy? Is there anything I can do about it?

The long term treatment of choice for seasonal allergies is the now over-the-counter nasal sprays, like Flonase or Nasacort. Note that there is no immediate relief from them - they work slowly, over several day... continue reading  about  I struggle with seasonal allergies and take Claritin, plus use a neti pot. This season, I have also had shortness of breath and light coughing, but no wheezing. It's hard to do my usual workouts. Is there some kind of inhaler I can use?

Yes, it is ok to take the medication for an extended period of time. However, the "D" formulation has a decongestant (which is what the 'D' represents in the name) and this can raise your blood pressure. I woul... continue reading  about  I have seasonal allergies. I previously went through allergy injections but I didn't feel like they were making much of a difference after several years of treatment. Is it okay to take something like Claritin D 12 hr for an extended period of time?

Neti pots use normal saline to rinse the nose of excess mucous. Normal saline is water to which salt is added and has the same degree of saltiness as your body's fluids. Saline rinses temporarily relieve nasal ... continue reading  about  A friend uses a neti pot and swears that it has reduced her allergies (sinus congestion and headaches) by 75 percent or more. How does the neti pot work and is it safe?

Not only is increasing asthma possible during the menstrual period, it's common. When women with asthma are asked about this complaint, 20-45 percent of them state that they have noticed worsening asthma during... continue reading  about  My asthma seems to get worse during my menstrual period? Is this possible?

The mechanism for spring and fall allergy is the same but the triggers are different. Spring allergy in Northern California is mainly caused by tree and grass pollen. (Read our article on Central Valley Allerg... continue reading  about  What are the differences between spring and fall allergies in Northern California? Are there different triggers?

If you are stung and start to have any whole body reaction such as hives or any respiratory problems, you should immediately use your EpiPen and then go straight to the ER. If you had whole body hives in the pa... continue reading  about  I had a pretty bad reaction to a bee sting a few years back, with hives all over my body. I was prescribed an EpiPen. If I get stung again, do I use the pen right away or wait to see if I have a reaction? After using the pen, should I go to the ER?

Here's a direct quote from the FDA about the term "hypoallergenic" as it relates to cosmetics:"Hypoallergenic cosmetics are products that manufacturers claim produce fewer allergic reactions than other cosmetic... continue reading  about  What does it mean when a product is labeled “hypoallergenic?”