Hi Dear, welcome to HCM. Understanding your concern. Thanks for your query .Sometimes infection left behined even after taking antibiotics . Specially when antibiotic course is short then require or one didn t complete it properly . In your case infection travel down the resiratory track and larynx got infected . The condition is called laryngitis . I would suggest you to again consult your ENT specialist(ear,nose,throat) for proper examination . Doctor may perform laryngoscopy or biopsy to confirm diagnosis . He/she may prescribe further antibiotic course and stronger antibiotics. For now try to speak less , give your larynx proper rest , take ibuprofen (if not allergic) or paracetamol for pain and swelling and give warm compresses to your neck . Hope your concern has been resolved. Get Well Soon. Best wishes, Dr. Harry Maheshwari