To heal a wound, the first thing to do is to clean it well, including a wide area around it. The surgeon knows that the cleaning hurts, but he also knows that there will be worse pain later if it is not done. A disinfectant is also applied immediately. Naturally it stings (or, as they say where I come from ...
You will only be good if you know how to see the good points and the virtues of the others. That is why when you have to correct, you should do so with charity, at the opportune moment, without humiliating. And being ready yourself to learn and to improve in the very faults you are correcting. (The Forge, 455)
"God calls us through what happens during our day: through the suffering and happiness of the people we live with, through the human interests of our colleagues and the things that make up our family life.”
SAINT JOSEMARÍA, Founder of Opus Dei