Is the doctor(s) considering a cauterization? Some times it is necessary to "burn" closed some weak nasal tissue - I understand, have never had it done myself.
A temporary fix may be the use for a day or two of the nasal decongestant such as Afrin sold in the USA. I do not know the name of the active ingredient. It shrinks nasal membrains and may temporarily stop minor nose bleeding. This medication can not be used for more than a couple of days..it will not "cure" any weakness in the membranes.