<<Disclaimer: Verify this information before applying it to your situation.>>

Thank you to all who responded.  While the overiding caveat from the responses
was "it varies by individual" the majority of respondents said they experience a
DH flare 2-3 days after gluten ingestion.  Several respondents also cautioned
that DH symptoms take much longer than gastro-celiac symptoms to go away.
Contact dermatitis could also be a factor as could externally applied gluten.
One respondent mentioned DH reactions to iodine.  Responses include:

Length of time for symptoms to dissapate:

"It may take months before the (gf) diet begins to affect the reactions.  I
personally have been on the diet for 20 months and still have reactions.  The
average, which I suppose is for adults, is 30 months."

"I was told it can take up to a year for the DH to clear your system.  Mine took
9 months."

Length of time for rash to appear after gluten ingestion:

"When I have a DH outbreak I cannot trace it back...correlating DH with what
you've eaten is very hard."

"...24-36 hours."

"...2 days."

"...3 days...My DH is my best indication I have made a (diet) mistake.  I know
now to trace it back 3 days."

External gluten and contact dermatitis:

"...check the creams and powders you are using.  My DH comes back if I use the
wrong soap or shampoo..."

"...reacted to laundry detergents, diapers, soaps, shampoos, bubble baths,
synthetic fibers, plastic playpen floors, waxes used on floors and furniture,
too much sun...I tried to remember what was new/different in the past week that
only came into contact with the affected area...reacted to the citric acid in
some brands of diaper wipes...May want to wash all new toys before he plays with
them -- some are dusted with a powder that may, judging from my son's reactions,
contain gluten."

Iodine:

"An individual with DH may be gluten-free and break out due to the interaction
of iodine with the IGA antigen...important for one with DH to limit the intake
of iodine.  See referral to post on "Iodine" from March 19, 1997 to this list."