"Lack of advice following surgery"

Husband had tonsillectomy & within 3 days had horrible infection resulting in return trip to GP. Poor advice from ENT department/surgical ward on what to look out for, only given strong painkillers (large tablets that were difficult to swallow - soluble better?), no advice given on eating & drinking, no antibiotics. Poor after care advice. I know that a busy hospital considers small ops like this routine but they are not for the patients. Leaflets or discharge talks would be recommended.