What kind of maintenance are needed to be performed to the brakes (ie. brake cleaning ? ) after crossing flood waters ?

After crossing the flood yesterday, immediately experienced some metallic noise which promptly disappeared after pumping the brakes repeatedly to dry it out.

This morning, about to drive out, when the brakes made some audible noise like "grrggghh, grrrghhh " . Disappeared again once I drove out. Just this lunch, the brake seemed nervous, shaking. and now I'm hearing some metallic again.

Note none of these happened before yesterday's flood crossing. and Note most of these noise manifestations occurred during initial brake use only.

Will brake cleaning/lubrication cure these noises ?

Thanks!