I assume you're referring to Thermacare (known as "The Only Thing You Talk About" on the DRUGS album). The song was originally a Chiodos song that leaked online right around the time Craig left Chiodos.
Yeah, I know about all the custody battles and variations on that song. I just saw that the live video incorrectly titled "If You Think This Song is About You..." but it actually was "Thermacare" so I was mistaken. I thought they were playing "If You Think" on this tour and the idea of bringing in actual DRUGS songs made me cringe.
Erak would be a cool addition to Chiodos if he were to stay for a new album. Don't think it is too likely but he would at least make up for some lost riffing/leads from Hale.