Help with Fungus on Cory

I have been treating my tank for Ich with the 30oC Temp & a little salt, Everything is coping well.
My Bronze Cory has developed fungus around its Dorsal fin, This is where he was worse hit with the white spots, So guessing this is a secondary infection?
My question is can i add anything to the tank for fungus before it gets worse, As im only a few days into the heat treatment i am worried about adding meds together with the heat
Thanks & Happy New Year ?

Seems to have dissapeared on its own, I am still at 30.2oC & have 8 days left on this Ich treatment, i added a 3 Tablespoons of salt into my 30Gallon on day 1 & all the Corys seem to be fine with it