Two pick-up paragraphs before we get to some statements and commentary on the liturgy itself. First, a person may be anointed more than once during the same illness or condition:
102. The. sacrament of anointing may be repeated:
a) when the sick person recovers after being anointed and, at a later time, becomes sick again;
b) when during the same illness the condition of the sick person becomes more serious.
In the case of a person who is chronically ill, or elderly and in a weakened condition, the sacrament of anointing May be repeated when in the pastoral judgment of the priest the condition of the sick person warrants the repetition of the sacrament.
The path of recovery for addicts seems to be a natural consideration, given the tortuous path from oblivion many people undertake.
103. A sick person who recovers after being anointed should be encouraged to give thanks for the favors received, especially by participating in a Mass of thanksgiving.
The Mass of thanksgiving seems a neglected element, though I’ve seen the joyful return of the sick, especially to daily Mass, after long illness or recovery. Clearly, any such return would be an occasion of thanksgiving, and would merit mention in the commentary and prayers of the Mass.