How can I inhale scream high?

I can inhale scream low, like low growls, but whenever I try to do the high ones it always sounds weird and hurts. I want to do the high screams like in Pray For Plagues by Bring Me the Horizon. And I've heard that inhale screaming is worse for your throat and voice than exhale screaming but every time I exhale scream it hurts my throat and I can't sing for awhile. But I can inhale scream all day and my throat and voice are fine. So, how can I do the high pitched screams? (without hurting my throat. plz)