Difficult to say: How long but usually can last even after treatment of the infection and even after the infection is gone. The symptomatic treatment with antihistamine and nasal steroid may take longer than antibiotics.
Answered 3/13/2020
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A doctor has provided 1 answer
A doctor has provided 1 answer
7 doctors weighed in across 2 answers
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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