Connections of Telescope have issued an upbeat bulletin after the Investec Derby candidate was forced to miss the Dante Stakes at York on Thursday.
Sir Michael Stoute's three-year-old had the key Derby trial as his aim for some time, but was a surprise absentee at the 48-hour declaration stage after a graze he sustained when entering a horsebox became infected.
The plan now for the Highclere Thoroughbred Racing-owned colt is to have a racecourse gallop to enable him to line up in the Classic.
His owners tweeted: "Telescope is responding well to the antibiotics. Positive news, but next few days are critical if he is to work next week."