Medicine

Does anyone take medicine that helps with SEVERE ocd-like task interruption behavior?

If I am in the middle of things they can not be interrupted at all. Or if my plans change I can not go on with the rest of the day. I can not be surprised with things and my day has to be exact same always. None of my task I do can be interrupted without a meltdown occuring. They end up being serious with crying and yelling and laying in bed for hours.

For example, my dad started talking to me while I brushed my teeth and it ended up me having a very bad meltdown. Or like, if I want to eat this 1 food for dinner but the store doesn't have it, I end up crying and having a meltdown and won't eat for hours. Stuff like that.

Is there medicine that can help that stuff?