What is the fastest way to heal a swollen eyelid?
The Checkup by Singlecare
JANUARY 11, 2024
When the immune system senses an allergen, it sends a chemical called histamine to the site, which can cause inflammation. Additionally, one 2013 study found bacteria in 79% of expired mascara, which may cause an eye infection. Antihistamines block this chemical, reducing the inflammation.
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