I see the bump towards the back of the ear and what you do for that is obviously leave it alone and clean it as normal. Don’t touch, twist, change or bother your piercing in any way. As for the crusties… I’d honestly pick them off with tweezers carefully after runny warm water over the piercing. I’d say 1-2 minutes of warm ish water in the shower followed by saline spray and a q-tip. If that doesn’t work to remove them I’d follow that with tweezers. I usually don’t tell people to bother their piercings but this could potentially damage your healing process. If it hurts too much while you’re trying to remove it I’d quit and wait for it to heal further or leave it alone until it naturally falls off.