I'm wondering how long does it take for dry socket to heal?

"A while"...: Depending on how the dry socket is treated, (just waiting? Blood clot is still there or gone? Dry socket paste is placed already? Etc., etc...) this kind of question cannot be answered. It is best to ask your dentist so that you get the answer specific to your condition. It may take as little as a few days, but with a certain medications or medical history, it could take weeks possibly.

Depends: Usually if treated properly, patients feel relief quickly. However, the pain can last longer. If the pain is more than a few days then there probably may be another issue present. Consult with your dentist or an oral surgeon.