I will re-post another older post of mine (general information regarding scrupulosity)
A person struggles with scruples - what ought they do?
A person with scrupulosity --ought to have a* “regular confessor” who can direct them --and even give them some general principles* to follow -to apply (principles for them due to their particular scruples -they are usually not for those with a normal conscience).
Thus with their direction they can “dismiss scruples” (in the older language despise them) - “act against them” (agere contra).
For example he might direct a particular penitent with scruples: “unless your certain of having committed mortal sin - make an act of contrition and go to Holy Communion.”
The Confessor will know his particular penitent and his scruples and can direct him.
Scruples are to be dismissed ~ not argued with.
To borrow and image from a Carthusian from centuries ago: Scruples *are like a barking dog or a hissing goose -one does not stop to argue with a barking dog or a hissing goose does one? * No one keeps walking.
Such ‘obedience’ to a regular confessor who knows of ones scruples (except in what is manifest sin - such as if he told them it was ok to murder someone or something certain like that) is key. Such is the age old practice.
Also counseling -(especially if one also has OCD) could be helpful depending on the case -but one would want to look for a counselor who can assist one in following the Churches Teachings - not go contrary to them (I have heard CA staff mention catholictherapists.com/)
Here was a not too long ago post from Jimmy Akin of CA that I saw in the Register and saved for those who struggle with such.