Allergies Archive


Simpler way to test for true penicillin allergy

A 2023 study found that an oral penicillin challenge in a doctor's office provides a simple method of determining true penicillin allergy.

Sneezy and dopey? Seasonal allergies and your brain

Allergy season is longer and more intense this year—causing sneezing, and itchy eyes in millions of people. But allergies also affect the brain, causing symptoms like brain fog. Here are some ways to prevent or ease brain fog from allergies.

Why won't my hives go away?

Hives are red, itchy welts that crop up on the skin. Allergic reactions and stress, among other triggers, can cause episodes of hives, which typically last several days to a couple of weeks. Cases that last six weeks or longer may be autoimmune hives.

Respiratory health harms often follow flooding: Taking these steps can help

Flooding due to major storms or heavy rains can harm lung health, both from toxic contaminants that end up in the air and from the growth of mold caused by dampness. Taking steps to prevent flooding when possible and moving quickly to reduce health risks if flooding occurs can help protect your family's health.

Beyond hot flashes

Around menopause, a decline in estrogen can trigger low-grade inflammation that leads to unexpected symptoms from head to toe. Symptoms can affect the digestive tract, skin, joints, eyes, ears, and heart, among other areas. A 2022 study found that estrogen loss can even fuel the jaw pain known as temporomandibular disorder. A year or longer can pass before many women connect symptoms with menopause. Women can take lifestyle measures to lower inflammation, such as eating more fruits and vegetables, avoiding processed foods, and exercising.

Poison ivy: Scratchin' like a hound?

Misconceptions about poison ivy are common — from when you can get it to how you might get it, and the best ways to treat it. Knowing the facts can help you avoid it, or treat it properly if you are exposed to it.

Thunderstorm asthma: Bad weather, allergies, and asthma attacks

Thunderstorm asthma is an attack that starts or worsens after a thunderstorm. It can occur in anyone with asthma, but it most often affects people with seasonal allergies. There are several risk factors that make experiencing this phenomenon more likely, so it's important to know what these are.

Do allergies make snoring worse?

Allergies that cause nasal congestion, sneezing, and a runny nose (what doctors call allergic rhinitis) can cause more frequent and louder snoring. Treating allergic rhinitis can reduce snoring and other symptoms related to poor-quality sleep.

Reduce the health risks from "forever chemicals"

Per- and polyfluoroalkyl substances (PFAS) are a group of thousands of manmade chemicals that are widely used in products such as nonstick pans, stain repellants for furniture and carpets, cosmetics, and industrial products. These compounds are dangerous to human health and may lead to immune system problems and increased risk of certain cancers. Avoiding exposure by filtering water and choosing PFAS-free products can help to reduce those risks.

Sniffing out sinus-related problems

Sinus problems are common, especially those caused by allergies, which affect some 40% of American adults. They often manifest as stuffiness, congestion, or a reduced sense of smell. Sinus problems most commonly fall into three categories: acute viral infections, allergy triggered inflammation, and chronic sinus infections.

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