Thank you for your question
My name is ***** ***** I shall do my best to help you but I am afraid the news is not good.
This is not an issues where the heavy handed nature of the legal system can help you.
There are no Orders that can stop family gossip and unpleasantness.
It is for your husband to ensure that he does not discuss your personal business with his mother - so that she has no ammunition for her gossip
I am sorry that there is no better news for you - but this is not the kind of matter that the law can really help with and it is important that we are honest with you
Please ask if you need further details
Such actions cost many thousands of pounds - and are public matters.
True or false publicly airing gossip is never beneficial - and will not improve the position at all i am afraid
That may well be the best way forward!