He was Convalescing from a leg wound.
"The Hidden Places"
Bertrand W. Sinclair
Miss Newton and her niece came often to see me when I was Convalescing from my wounds.
"The Lost Despatch"
Natalie Sumner Lincoln
How I first came there I know not, but when at length I struggled back to recollection and life, there I found myself, and there I remained, slowly Convalescing, a prisoner to weakness, until finally discharged but two days before.
"My Lady of the North"
Randall Parrish