I received an injection of Promethazine 2 weeks ago for vertigo as temporary relief to get me through my evening commute home from work and give me enough time to fill my long-term prescription (Ciprofloxacin since dizziness was from bacterial inner ear infection). The dizziness is completely gone... but my shoulder is still very sore and the tissue surrounding the injection site is hard. Other than super drowsiness the rest of that day, I didn't notice anything else. The PA said it would hurt the next day, but after 2 weeks should I feel this much pain??