Hi,
Welcome to health care magic,
Itching over anal region with bleeding during stool could be due intestinal parasites,
diarrhoea, piles or anal fissures etc.
Your wife must be diagnosed before taking any specific treatment.
For that,she must be checked by surgeon for complete history and thoroughly clinical examination.
She may require routine blood count, stool examination for R/M ova and
cyst and proctoscopy etc.
Treatment is mainly depend on the underlying cause but she may require full course of antibiotics (quinolones-
ofloxacin with antiprotozoals like metronidazole/tinidazole/
ornidazole) for minimum 7 to 10 days with antihelminthic, antihistamines and topical
steroids and lignocaine in combination for symptomatic relief.
Thanks and regards,