Patients with allergic conjunctivitis may experience itchy eyes and conjunctival congestion, accompanied by uncomfortable symptoms such as tearing, photophobia, and increased eye discharge. The main symptom of allergic conjunctivitis is an itchy sensation in the eyes, mainly due to environmental triggers or stimulation of the patient’s eye tissues, such as pollen, willow flakes, dust, animal fur, bright light, wind, sweat, etc., patients may experience itchy discomfort in the eyes. Allergic conjunctivitis also occurs conjunctival congestion as well as tearing, photophobia, mainly because the patient’s own eyes have inflammation, light stimulation and wind stimulation will aggravate the inflammation of the eye stimulation, so the patient can show conjunctival congestion, tearing, photophobia and other discomfort. Allergic conjunctivitis patients in the inflammation stimulation, can also appear in the eyes of the phenomenon of increased secretion, often combined with the phenomenon of white filamentous secretion increase. It is recommended that patients with allergic conjunctivitis consult a hospital in a timely manner to assess their condition and receive treatment under the guidance of a medical professional.