Taste the oil. If the flavor isn't strong enough, add more flavorings. You may leave the herbs in the oil or strain them out. Once the oil is infused, keep it in the refrigerator. It may get cloudy from the cold, but should clear up when it reaches room temperature. The oil should last, refrigerated, for up to 1 month.
Optionally if you are in a hurry to make this herb you may use a crockpot. Put all ingredients in crock and cook on high for 1 1/2 hours. Cool and bottle.