Tag: Zyrtec stops working

15 Jan
Long-Term Antihistamine Use: Why They Might Stop Working and What to Do

Long-Term Antihistamine Use: Why They Might Stop Working and What to Do

Many people feel their antihistamines stop working over time, but true tolerance is rare. Learn why symptoms return and what actually helps-higher doses, nasal sprays, or immunotherapy-not just switching pills.

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