Question

Which of the following is a common symptom of allergic reactions?

Options

• Muscle pain and fever

• Sneezing, watery eyes, and runny nose

• Hair loss and skin darkening

• Bleeding and bruising

Answer 1

Common symptoms of allergic reactions include sneezing, watery eyes, and a runny nose. These symptoms result from histamine stimulation of H1 receptors in the nasal mucosa and eyes. The inflammatory cascade triggered by histamine release causes vasodilation and increased vascular permeability, leading to the characteristic rhinitis and conjunctivitis symptoms commonly experienced during allergic reactions.