How much of a work-up do you perform for an otherwise healthy patient with aquagenic pruritus to look for an underlying hematologic disorder?

What workup, if any, do you perform for aquagenic pruritus?

• Referral for Sweat Testing
• Referral to Genetics
• Do nothing, counsel to avoid triggers
• Obtain Further History: Delayed Development, Frequent Infectious (ex: otitis media), etc.
• Other