The end of the steel wire needs to be "bent backwards", that is, the end of the steel wire is slightly bent so that the steel wire will not stab the mucosa.

You go back to the doctor to deal with it.

Before receiving treatment, a little cotton can be put on the end of the steel wire to isolate the stimulation of the steel wire to the mucosa and protect the mucosa from being stabbed.

Glue sticking and wax protection are temporary measures. In the long run, bending steel wire is professional and reasonable.

Good luck.