The most important thing during illness is to offer to God patience and thanksgiving for His merciful visitations. Sickness purifies sins and gives one time to meditate on the past.
Even if we have innumerable virtues, the plague of vainglory is capable of destroying them all. If, then, we desire praises let us seek those which come from God.
The Lord often humbles the vainglorious by causing some dishonor to befall them. And indeed the first step in overcoming vainglory is to remain silent and to accept dishonor gladly. The middle stage is to check every act of vainglory while it is still in thought. The end—insofar as one may talk of an end to an abyss—is to be able to accept humiliation before others without actually feeling it.