Throat hurting after screaming

Hi guys!

I've been trying to teach myself to fry scream for about 2 months now. I've finally gotten to the stage where I feel I can scream a level that actually sounds like screaming vocals and I try to practice when I drive about as my car is a place where I can make lots of noise.

The issue I feel I am having is that after I scream my throat will start to hurt. Since I started I've always been catious of my throat hurting when I'm screaming, so I've tried to change my technique watching videos on youtube to help. I definitly think this has helped me as my throat doesn't hurt very much (probably not at all, it doesn't feel sore, just like an odd sensation which I think I have gathered is normal) when I scream. The issue is after I'm done screaming. My throat starts to become sore, like a sore throat when you get a cold, a rough kind of feeling about 30s to 2 mins after I have screamed. However, my voice will not go croaky or anything at any point.

I was wondering if anyone could help me with this. Is this an issue with my technique or is it just because I haven't used this part of my voice before? If I keep screaming like this will I ruin my voice? If this is an issue, how do I fix it, as it can be a bit uncomfortable for a small amount of time after?

Thanks for the help in advance!