- Opioids can cause itching, by releasing histamine from mast cells.
- The allergic reaction causes the cells to release histamine, a chemical which prompts the sneezing and itching impulse.
- Quercetin reduces histamine degranulation and the subsequent release of histamine and inflammatory leukotrienes.
- In anaphylactic reactions it does switch off the cells that are releasing histamine…
- Allergic reactions involve the release of histamine, a chemical that triggers inflammation and swelling.