While it can be done, cauterizing your own wound is not safe. The practice involves purposely burning the skin, so it requires specific techniques and equipment. It's best to seek medical help for the procedure.

Will cauterization leave scars?

Scars. Curettage and cautery of a skin lesion always leaves some degree of scarring as it is not possible to curette the skin without this happening. The lesion will have to be treated by the dermatologist to ensure scarring is kept to a minimum.

Can you Cauterise a bullet wound?

So, to answer your question: No, it is not effective. You are essentially sealing in any bacteria and crud.