"This is something that has been monitored by Doctor Mayhew for six months," said Barry.
"Nothing scan wise we do right now will have any influence on whether Joseph fights next Thursday.
The 22 year old is now on a course of anti-inflammatories and has been ordered to wear a sling over the weekend.
"The next 48 hours are a very important time and I'm hoping it will settle down otherwise we may have to consider an injection," said Barry.
"Joseph now needs to focus all his energy in getting fit."
The injury occurred as Parker, and Barry, were in the final preparations for his fight against Sherman 'the Tank' Williams next Thursday October 16.
The 22 year old says he's upset at the setback.
"I've trained too hard for this fight for a setback now."
Parker is currently ranked 14 in the WBO and 15 in the WBA. He is scheduled to defend his WBO Oriental and WBA PABA Heavyweight Titles at Trusts Arena on October 16.