Pharmacy Aoba Inari-zaka Shop

I used to get dermatological medicine before, I went for my grandmother on my behalf It was a steroid medicine, What happens if you apply it to areas other than the affected area I heard it because my grandmother wants to explain it properly. I was told that I couldn't paint it But I was worried that there should be side effects I heard it again I was told quite strongly that I couldn't apply it as well, why is it so high pressure? I was a man, but I will never go again.