Shooting pain from possible heel spur. Any insoles to help?

Otc arch support. May consider a good over the counter insert i.e. Superfeet. In people with "normal" foot mechanics, these have been shown to be just as effective as custom inserts for a lot less $. A cushioned heel cup may also help.
Many. There are many types of insoles that may help, but you need to make sure they are supporting the foot and just padding the foot. If persisits, see your podiatrist.

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I've got shooting pain from possible heel spur. What's the best way to stop it?

Probably surgery. While keeping pressure off the heel may take care of the pain, that's often not practical and it may need to be removed surgically. Read more...