No do not ride him if it’s not popped. Trust you will know when it’s popped like said down below
This may sound disgusting but trust me you'll know when an abscess has popped! It'll smell and your poultice will have puss in it as opposed to just being soggy from the water. Sometimes it does take time if it's deep! Lots of salt in the warm water helps. I wouldn't recommend riding till it's better!
no you wait till you're 100% sure it popped and he is not in pain
If he’s not putting weight on it then I would suggest not riding him