A hose bib that drips after the handle is closed often needs a new rubber washer inside the stem assembly. Replacing the washer is a small plumbing repair, but the water must be shut off fully before the packing nut or stem is loosened.
Confirm the leak location
Dry the faucet and watch the first drop. Water from the spout after closure points toward the valve washer, while water around the handle may indicate packing or stem damage. A leak at the threaded hose connection may only need a new hose gasket. Identifying the location prevents replacing the wrong part.
Shut off and drain
Close the interior shutoff serving the hose bib and open the outside faucet to release pressure. If there is no dedicated shutoff, the main supply may need to be closed; know where it is before starting. Never rely on the outdoor handle alone. Place a small container under the faucet and keep the handle open until the flow stops.
Remove the stem
Use two wrenches where possible: one to hold the faucet body and another to turn the packing or stem nut. Protect finished surfaces with a cloth and use steady pressure. Withdraw the stem assembly and note the order of the screw, washer, and any small retainer. If the stem is frozen or the pipe twists, stop and call a plumber rather than damaging the supply line.
Install and test
Fit a replacement washer with the same diameter and thickness, using the original screw or an approved replacement. Reinstall the stem, tighten the nut snugly, and close the handle before reopening the supply slowly. Check the spout, handle area, and wall penetration for leaks. Operate the faucet twice and inspect again after a few minutes.
In freezing climates, disconnect hoses and use the interior shutoff and drain cap before winter. If the faucet is a frost-free model, keep its outlet clear and make sure the pipe slopes outward so water can drain.