If a demon like Haures Burns you with astral fire, will it leave physical burn injuries?
No. Astral fire is spiritual so it might feel like you’re burning, but no one will notice anything physically.
However, your subconscious mind is extremely powerful and can actually cause marks to appear on your body if it truly believes it is experiencing something. This has been known to happen during night terrors, for example, when someone is so deep into their nightmare that they experience all of the emotions and pain so their body reacts.