My limited experience with going to Church of God places indicated to me that they hold this belief, but I do jot know the term for it. They didn’t pray to god, they prayed to Jesus, specifically. And cried for him. And thanked him. And apologized to him. And so on. All to Jesus, not god, who are apparently different.
The idea of the Trinity is not the same across all “Christian” religions, see Arianism for example of an early split.
I’m not sure it’s good to approach this with a “how do I get rid of” mindset. Unless you have some other specific circumstances, these are conditions that we live with. However, working with a doctor can help. Also, your own personal experience will, too. Diet, topical products, and possibly medication could all play a role. I have had excema and dandruff for my whole life, but thru watching what I eat and keeping track of what I use, I have a pretty good system that works for me. I didn’t get the excema figured out until my mod twenties (from a management standpoint), and the dandruff until mod thirties, but I feel OK about those things now. I would have been better off, I think, if I consulted with a doctor as a teen. I really recommend this. Don’t be afraid of a second opinion.