Certain foods can actually produce more mucus.
Here’s what to avoid when you’re feeling under the weather.
So why does this happen?

You may be surprised to learn that food and drink can play a part in this.
When mucus gets trapped, it gets thicker and stickier.
… That mucus is then going to just sit there and become like a spa for bacteria, explainedDr.

Sam Huh, assistant professor of the department of Otolaryngology at Mount Sinai.
Jyothi Tirumalasetty, a clinical assistant professor specializing in allergy and immunology at Stanford Medicine.
Foods High In Histamines
So what is histamine?

Its a chemical produced by our immune system when it experiences a threat, like a potential allergen.
Histamine intolerancecan lead to many symptoms, including digestive issues, headaches, skin irritation and nasal congestion.
There are some foods and drinks that naturally contain a high amount of histamines.

Onestudylooked at how a salicylate-free diet showed a positive improvement in sinusitis symptoms.
When youre dealing with nasal congestion, the tissues lining your sinuses are already inflamed.
Onestudyfound that a diet high in refined sugars could worsen sinusitis by increasing inflammation.
Foods And Drinks That May Relieve Congestion
Anderson-Haynes suggests consuming anti-inflammatory ingredients to help reduce congestion.
Capsaicin, an active compound in cayenne and other hot peppers, can cause blood vessels to open up.
Compounds found in garlic and ginger also reduce inflammation.