When to Pay Attention
A small itch might not seem like a big deal, but watch for these warning signs:
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Red, raised welts that itch intensely
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Swelling of the lips, eyelids, or face
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Rashes that appear in one place and then shift to another
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Flare-ups that worsen at night or with activity
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Seek emergency care immediately if you have trouble breathing or feel throat tightness
