Blood in stool in my 1 month old baby.

My baby will complete two months in a few days. We have seen blood in her stool for the first time 22 days back. Consulted a doctor , but the doctor said it is mucus flakes. Got a culture test done, no bacterial growth was found. He gave sucral ANO ointment to apply on anus. He even said it might be cow milk protein allergy and hence I stopped consuming any kind of milk product. The blood in stool does not appear on a daily basis, but in some days. It is still there. And the blood is fresh. Another doctor has prescribed neosporin to be applied the anus. My baby is playful, interested in the feedings and is gaining weight too. She farts a lot and passes stool 5-7 times on an average every day. We are very much worried now.