Common psoriasis triggers (n = 260) 13 Trigger factors Frequency% Stress 115 44, 2 Skin injuries 27 10, 4 Infection (sinuses, nose, throat) 17 6, 5 Drugs (antibiotics, pain killer) 22 8, 5 Food 79 30, 4 Conclusion: The most common triggers cited in this study were stress (44.2%), followed by food (30.4%) overall.