I went to hospital to change dressing for the last time today.
Does it make sense?
I went to hospital to change dressing for the last time today.
Does it make sense?
.
It makes sense, but is not quite grammatical. Try: to change the/my dressing
.
Your sentence is correct. Why all the doubts? Are you writing the sentences and you are not sure of your English ?
Another way of saying it is:
I went to hospital to have my dressing changed for the last time today.