Hi i am Dr Ahmed Aly thanks for using HealthcareMagic site , I had gone through your question and understand your concerns .. I hope your husband feels better soon , septic arthritis means infection within the joint space , usually such infection is of a chronic type so requires biopsy needle aspiration to choose the best treating antibiotic after culture and sensitivity . For now i recommend elevation of his infected leg ,avoid bending it for a long period of time , alphintern anti inflammatory tabs before his meals , painkillers like tylenol tabs 400 mg , and a wide spectrum antibiotic will help him to withstand pain till he reaches his specialist . Please click and consider a 5 star rating with some positive feedback if the information was helpful. Wish you good health, Any further clarifications feel free to ask.