<prompt> Drug used in the treatment of CAH in a child is:DexamethasoneBetamethasonePrednisoloneHydrocortisone  <response>: d. HydrocortisoneRef: Nelsons 20e p 2719Treatment of CAH 21 hydroxylase deficiency involves use of Hydrocortisone 15-20mgm224hr, administered orally in 3 divided doses. Double or triple doses are indicated during periods of stress, such as infection or surgery. 