On the mend means getting better after being ill. He is on the mend at last.
It reports a direction rather than a state, so somebody on the mend is still unwell. It is used of businesses and relationships as well as of people.
1phraseon the mendGetting better after being ill.
“She was in for a fortnight and is on the mend now.”
on the mend is a phrase.
Practised in Idioms