Use a claw hammer to remove the nails. Insert the blade of a reciprocating saw behind boards as needed to cut off stubborn or broken nails that you can't remove with the hammer. Remove the remaining part of the nail with diagonal pliers. Grasp board B -- the weatherboard you're replacing -- with both hands.
Desmopressin, sold under the trade name DDAVP among others, is a medication used to treat diabetes insipidus, bedwetting, hemophilia A, von Willebrand disease, and high blood urea levels. In hemophilia A and von Willebrand disease, it should only be used for mild to moderate cases.
Desmopressin is usually effective when used for a short period of time, such as during times of emotional stress or during overnight trips or camping trips. Children who wet the bed 4 nights a week or more can expect to have fewer wet nights when they take desmopressin. Children with a family history of bed-wetting seem to have more success with desmopressin than with other treatments.