U are not supposed to train a muscle group everyday, they need to rest too

It is recommended u train them once a week per muscle group with proper diet for faster recovery/growth

do you consume any supplement? i mean body-building supplement?

Here is the case,

If you are train without consume any supplement, you need to rest 1-2 days in between after workout as your body do not have enough nutrition to heal back the muscle.

If you train with supplement along, I don't see there's any possibility to get pain since the supplement provide enough nutrition to heal your muscle.

UNLESS your workout method was wrong OR sleep not enough OR you overdo the workout where you hold something which is not under your capability.

Look, supplements are not miracle-workers. With or without them you need to rest.
Enthusiastic as you may be, you're doing it wrong, very wrong.

is it the entire edge of your forearm along the pinky?

might be too much unnecessary stress from your wrist.

don't tighten the spinlock on your barbell/dumbbell until the plates can't move, this helps lighten the stress transferred to your wrists.

also let your wrists rotate naturally when curling, barbell curling too much is bad because of how the bar lock your wrists into a fixed position. your wrist is still rotating, only the bar is preventing it from doing so, so all the force from rotating towards the bar is transferred back to your wrist.

see how some people when dumbbell curling starts with a hammer position and rotates their wrist a little bit so the palm is facing towards their face. still, too much curling will always be stressful to the wrist but these tips will let you curl a bit more before you kill your wrist again.

The pain is called DOMS bro, you should let it recover