Question

What does mi cortisone mean in Spanish

Answer 1

It appears as though you're trying to find out what "mi corazon" means. In Spanish it mean, "my heart". Some use it as a term of love like when we say, "I love you, baby" or "You're my love". They will say, "You're mi Corazon" meaning, you're my love/heart.  

Answer 2

I think your trying to say Mi Corazón which means my heart