Hi sue and welcome to the forum
If the injured party did not receive full pay during the IVA, then you would need to discuss the implication of that with the supervisor of the IVA. It is generally possible for the IP to sanction up to three missed monthly payments, without reference to the creditors, but if the person were to be off work for longer, a longer payment break would require the sanction of creditors. As the reasons for the break are entirely genuine, there should be no problem in getting their agreement.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk