Is it haram to put a bag over the private parts of someone who suffers from incontinence?

What is the ruling on a person who is in ihram and who suffers from incontinence putting something over his private parts – such as a bag – so that the najaasah (impurity) will not spread? Is this one of the things that are forbidden in ihram?

Praise be to Allah, and blessings and peace be upon the Messenger of Allah:

We put this question to Shaykh Muhammad ibn Saalih al-‘Uthaymeen (may Allah preserve him), who replied that this is not one of the things that are forbidden in ihram.

And Allah knows best.