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Determine whether you have a metal wood or a wood head. Wash metal wood heads with warm, soapy water and a damp cloth. Use a toothbrush to remove dirt in the grooves from a metal wood head. Wipe wooden heads with a damp cloth. Use head covers when you are not using the clubs.
It’s rare for modern clubs to be made of wood, but older clubs might be. Metal wood heads have a metal plate on them, and should be cleaned differently than true wood clubs. Fill a container with warm water, then stir in a few pumps of dish soap. Dip the head into the water, then immediately lift it out. Wipe the head clean with a damp cloth, then pat it dry with a lean cloth. Do not soak metal wood heads. They are hollow, whereas iron heads are solid. Sometimes, soapy water and a cloth aren't enough to get rid of the dirt. In this case, use a toothbrush or another soft-bristled brush to scrub the dirt away from the grooves; do not use the brush on any other part of the head. Do not use a toothbrush on a wooden (non-metal) head. Never soak wooden (non-metal) heads in water or other liquids. Instead, wipe them clean with a soft, damp cloth. Dry them off immediately afterwards with a clean, dry cloth. You can polish wooden heads with wood wax. Apply the polish according to the instructions on the label. Wood heads get damaged easily, so they need extra protection. The head cover will not only protect the head against chips and dents, but it will also help keep the paintwork intact.  Irons don't need head covers, but you can use them if you really want to. Always wipe the head clean before applying the cover. If you don't you risk trapping moisture and ruining the head.