But the Tractor Boys will still be without Jonathan Parr and Teddy Bishop, who remain sidelined with thigh and hamstring issues respectively.
Parr played for the under-21 side against Coventry on Monday so should be available soon, meaning Luke Chambers is likely to keep his place in the side having been drafted in for Saturday’s win over Sheffield Wednesday.
Brett Pitman impressed McCarthy coming off the bench at the weekend and the former Bournemouth forward will be hoping to make his full debut against Sean Dyche’s side.
Burnley are still waiting on new striker Rouwen Hennings’ international clearance.
The German forward has been training with the Clarets since joining from Bundesliga 2 side Karlsruher last week but may not get the necessary paperwork filed in time to play at Portman Road.
Dyche will not have full-back Matt Lowton (shin) or midfielder Fredrik Ulvestad (ankle) back just yet, although both have resumed light training.
Burnley also have three long-term absentees in Daniel Lafferty (collarbone), Ashley Barnes (knee) and Jason Gilchrist (ankle).