Triamcinolone precautions. Before using Triamcinolone, tell your doctor or pharmacist if you are allergic to it; or to other steroids (e.g., hydrocortisone); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor, dentist, or pharmacist if you have: herpes-type infection, other infections/sores of the mouth or throat. Before using this medication, tell your doctor, dentist, or pharmacist your medical history.