Hello I had gone through your question and I will try to help you out in best possible way Foul smelling discharge with blood is suggestive of anal absecess or a fistula in my opinion you should consult a general surgeon for examination and a battery of tests like blood for hemoglobin CBC liver function test blood sugar and a fistula test in addition to augmentin you may require a course of metronidazole instead of suppository you can take liquid paraffin as a stool softening agent Have plenty of fluids and maintain good hygiene site bath will be very beneficial in your case hope this helps you please feel free to ask for.more clarification I will gladly answer you best wishes