আমবাত

কারণসমূহ

Hives are often caused when the body releases a chemical called histamine. Histamine is released during an allergic reaction. Many people, though, get hives without being exposed to something they are allergic to.

While the cause is unknown in some cases, these factors may cause hives:

• Foods, most commonly:
  • ডিম
  • ঝিনুক
  • Nuts
  • Chocolate
  • মাছ
  • Tomatoes
  • Fresh berries
  • দুধ
• ওষুধগুলো
• Reaction to allergy shots (desensitization shots)
• সংক্রমণ
• Insect bites or stings
• ক্ষীর
• Pressure
• Cold or heat
• সূর্যালোক
• Thyroid disease (hypothyroidism, hyperthyroidism)
• পরাগ
• মানসিক চাপ
• Vasculitis (inflammation of the blood vessels)

ঝুঁকির কারণ

A risk factor is something that increases your chance of getting hives. Tell your doctor if you have any of these:

• Exposure to an allergen (something that causes an allergic reaction)
• Exposure to an allergen that triggered hives in the past

লক্ষণ

Symptoms of hives can vary from mild-to-severe:

• Itchiness
• লালভাব
• ফোলা
• Excessive swelling of the eyelids, lips, or genitals
• জ্বলন্ত
• স্টিংিং
• Difficulty breathing or swallowing—Call 911 if you are having these symptoms.

রোগ নির্ণয়

The doctor will ask about your symptoms and medical history, and do a physical exam. You may need to see a doctor who specializes in skin disorders (dermatologist) or allergies (allergist). The following tests will be done:

• Skin prick test—a tiny bit of an allergen is placed in your skin with a needle to see if the area becomes raised or irritated
• Skin biopsy—a small portion of abnormal skin is removed
• এক্স-রে- এমন একটি পরীক্ষা যা শরীরের ভিতরের গঠন, বিশেষ করে হাড়ের ছবি তুলতে বিকিরণ ব্যবহার করে
• রক্ত পরীক্ষা

চিকিৎসা

The best way to treat hives is to find and then avoid the cause.

If the cause can’t be found, there are medicines to reduce symptoms or treat hives:

• H1-blocking medicines like:
  • Diphenhydramine (eg, Aler-Cap, Benadryl Allergy)
  • Hydroxyzine (eg, Vistaril)
  • Cyproheptadine
  • Fexofenadine (eg, Allegra)
  • Loratadine (eg, Claritin)
  • Acrivastine (eg, Semprex)
  • Cetirizine (eg, Zyrtec)
  • Doxepin (eg, Prudoxin, Sinequan, Zonalon)
  • Levocetirizine (eg, Xyzal)
• H2 blocking medicines like:
  • Cimetidine (eg, Tagamet HB)
  • Ranitidine (eg, Zantac)
  • Famotidine (eg, Pepcid)
• Leukotriene antagonists like Montelukast
• Oral steroid medications (eg, prednisone) for hives resistant to other treatments
• Anti-inflammatory medicines
• Immunosuppressant medicines
• Ultraviolet light therapy
• Prescription epinephrine (adrenalin) injections for cases when swelling affects the airways

প্রতিরোধ

The best way to prevent hives is to avoid allergen that caused you to get hives in the past.