How to heal a bone/muscle in the foot that moves your toes?

I've had a pain in my foot for three days, i cant lift my toes up without it feeling like the bones cracked or something. i'm not sure if i have pulled a muscle or a ligament, but if put my hand on the part of my foot that like connects to my toes, and lift my toes up, you can feel the force of me trying to lift my toes and like feel crackling, it's hard to explain tbh. but i don't know how to heal it? and should i get it checked out if it's been like this for three days?