Question:
Answer:
The Catechism of the Catholic Church:
If a sick person who received this anointing recovers his health, he can in the case of another grave illness receive this sacrament again. If during the same illness the person’s condition becomes more serious, the sacrament may be repeated. It is fitting to receive the Anointing of the Sick just prior to a serious operation. The same holds for the elderly whose frailty becomes more pronounced (1515).
The Code of Canon Law:
This sacrament can be repeated if the sick person, having recovered, again becomes gravely ill or if the condition becomes more grave during the same illness (can. 1004 §2).
If you have been anointed and are no longer ill, then you should not be anointed again. If, however, you were anointed and there are ongoing sufferings and issues, then you may be anointed again periodically.