Green’s Dictionary of Slang

suffering from venereal disease.

1646		H. Mill Nights Search II 46: [She is] scalded, or the old disease Creeps through her bones.
1656		Mennis & Smith ‘Epitaph on a Leacherous Warrener’ Musarum Deliciae (1817) 213: Behold here lyes a scalded pate quite bare, In catching conies, who lost many a hare.