The Czech Republic international made just 22 starts in the Premier League last season after suffering from a number of hamstring and groin problems.
In May, Rosicky had four of his wisdom teeth removed in an effort to resolve his troublesome injuries.
The 27-year-old explained that a specialist insole is currently being made for his football boots.
"After the training, I had to visit a clinic where they will be making a special insole for my shoes," he told iDnes.cz.
Rosicky also confirmed that he hopes to be available for the Czechs' Euro 2008 qualifier against Germany on October 17.
"I could play already against Sunderland on Sunday but it did not turn out for me. Now Germany is on the list, so we'll see," he added.