Hi,
Welcome to healthcare magic
I have read your query and I suggest you mention the size of the cut and amount of gaping.If the wound is large and not healing you need to consult nearby doctor as it may require stitching the wound for appropriate healing.
The blisters you mentioned might have caused by rubbing the wound area too much,you now need to follow certain measures to reduce the blisters:
1.Keep the area open with regular washing with an anti bacterial soap an application of antibiotic ointment like
betadine.
2.Application of ice at frequent intervals will help reduce the size of blisters
3.Apply turmeric powder on the wound as it acts as an antiseptic and prevents further injection.
4.You need to get a dose of
tetanus toxoid if you have not recently been injected with it.
5.Blisters will resolve gradually,till then don't rub the part and don't try to burst open the blister,its only if the blisters are increasing in size and become painful consult a doctor for proper
drainage with aseptic precautions.
Hope this answers your query.
Regards,
Dr.Tushar Tamboli