Called solar urticaria, symptoms include an outbreak of hives when exposed to the sun. Anti-histamines and sun screen also help to keep reactions to a minimum, and although there is no permanent cure, in some rare cases the condition can go away on its own. This allergy should not be confused with heat urticaria — another rare allergic reaction which occurs when the sufferer is exposed to temperatures greater than Whether you suffer from a rare allergy such as those mentioned above or a more common allergy such as hay fever, it is vital that you seek medical advice and treatment to manage the condition.
Allergies can range in severity from the mild to the life-threatening, so you must always have the source of your allergic reactions investigated and diagnosed. Here for you, not for profit. This service can be accessed by phone hours a day.
Kids who are old enough can be taught how to give themselves the injection. If they carry the epinephrine, it should be nearby, not left in a locker or in the nurse's office.
Wherever your child is, caregivers should always know where the epinephrine is, have easy access to it, and know how to give the shot. Staff at your child's school should know about the allergy and have an action plan in place. Your child's medicines should be accessible at all times. Also consider having your child wear a medical alert bracelet. Every second counts in an allergic reaction.
If your child starts having serious allergic symptoms, like swelling of the mouth or throat or difficulty breathing, give the epinephrine auto-injector right away. Also give it right away if the symptoms involve two different parts of the body, like hives with vomiting.
Then call and take your child to the emergency room. Your child needs to be under medical supervision because even if the worst seems to have passed, a second wave of serious symptoms can happen. It's also a good idea to carry an over-the-counter OTC antihistamine for your child, as this can help treat mild allergy symptoms. Use antihistamines after — not as a replacement for — the epinephrine shot during life-threatening reactions. If allergy testing shows that your child has a fish allergy, the doctor will give you guidelines on keeping your child safe.
To prevent allergic reactions, your child must not eat fish. Your child also must not eat any foods that might contain fish as ingredients. Anyone who is sensitive to the smell of cooking fish should avoid restaurants and other areas where fish is being cooked. Always read food labels to see if a food contains fish.
The hives are made up of raised bumps on the skin called wheals. Once the skin is dry, they generally fade within 30 to 60 minutes. In more severe cases, the condition can also cause angioedema , a swelling of the tissues beneath the skin. This is a deeper swelling than hives and can be more painful. Both urticaria and angioedema tend to develop upon contact with water of any temperature. Even though aquagenic urticaria resembles an allergy, it technically isn't — it's categorized more broadly as a disease.
Because of this, treatments that work for allergies, such as allergy shots — which work by injecting the patient with allergens to stimulate their immune system so they build up a tolerance — are not fully effective. While antihistamines can help by somewhat relieving the symptoms of hives, the best patients can do is try to avoid water contact. While the severity and frequency of a reaction varies, most patients react every day, several times per day, according to Maurer.
For example, a Medical Science Monitor study found higher levels of depression and anxiety in patients with all types of chronic urticaria, including aquagenic urticaria. Moreover, children with the condition have been reasonably scared of taking baths, and a mother with the disease had to be careful holding her son after she had a reaction to his tears.
Even eating and drinking can be stressful, because if water spills onto the skin or spicy food causes the patient to sweat, they will have an allergic reaction. Jacob once treated a girl who developed severe lip dermatitis after playing a flute containing the metal. One problem with diagnosing the allergy is the rash could come a week after contact with nickel, so not everyone associates the symptoms with the potentially problematic object, said Jacob.
The number of allergy patients testing positive for a nickel reaction is on the rise in the United States. Many clinicians have attributed the increase, especially in men, to a growing number of ear and other piercings.
About 19 percent of patients with allergic dermatitis are sensitized to nickel, reported the North American Contact Dermatitis Group in data from The number of such patients was much smaller in -- about 11 percent. How does one become sensitized to nickel? As Jacob explains it, for some people the intimate contact between the skin and the nickel used in earrings and ear posts can do the trick.
But your immune system remembers the metal and eventually, after more exposure, you reach an "elicitation threshold" when "your skin is primed to react. Jacob says she wants the American Academy of Dermatology to help push for regulations to limit the amount of nickel in products with prolonged skin contact, just as was done in Europe in the early '90s.
For thousands of years, people in North Africa, the Middle East and South Asia have decorated their bodies with henna, but in recent decades, adulterations in the dye used for these temporary tattoos have resulted in painful allergic reactions. Henna is a normally reddish-brown or greenish-brown vegetable coloring derived from lawsone, an ingredient found in the leaves of the henna shrub.
Normal henna rarely causes allergic contact dermatitis, but darker henna containing an added chemical also found in hair dye called p-phenylenediamine, or PPD, can instigate severe skin problems and additional allergies.
In some cases, the tattooed skin of those who are allergic to PPD will swell and blister, with the contours of the bumpy skin conforming to the shape of the original tattoo. It's not unusual for people who react to black henna to also react to hair dye, sometimes as a result of the black henna encounter. While PPD in small amounts is still allowed in hair dyes, it has been banned from skin products in the United States since Still, henna artists hoping to capitalize on the popularity of the black coloring can mix the dangerous paste on their own.
If the stain on your skin is black, "you've got aproblem. When we think of food allergies, we typically envision a reaction that results after the allergic person puts the problematic food in his or her mouth. But that's not always how it goes. Clifford Bassett, an allergy specialist at the Long Island College Hospital and the American Academy of Allergy, Asthma and Immunology, notes that 40 percent of food allergy reactions come not from eating a food trigger but from touching or inhaling it.
Such was the case with one of Bassett's patients, a young girl who developed hives after she hugged and kissed her father when he returned home from work. In this case, it wasn't even something the daughter had put on herself. It turned out that the child was allergic to the nut-derived oil in her father's shaving cream, said Bassett.
They were special dairy-free chocolate chips. They weren't supposed to trigger an allergic reaction in Stefania Paciocco's son Gabriele, who at 5 years old already had a laundry list of food allergies including milk, tree nuts, peanuts and eggs. Paciocco suspected her son was allergic to chocolate, but the boy's doctor did not initially believe it. Harvey Leo, a pediatric allergist and immunologist at C. However, after some persistence by Paciocco, a skin test and a food challenge showed Gabriele, indeed, hadthe allergy.
He can't have a chocolate bar?
0コメント