strange rash on a 10-month old. please help!

On 5 Dec 2003 04:04:15 -0800, (Mark) wrote:

Your son is having what's called a Gianotti-Crosti reaction (my
provisional diagnosis, based on your excellent history and photos).

Another exanthem with a name. I'd have to disagree on this one --
Gianotti-Crosti is an acrodermatitis, and this kid has significant
truncal involvement.

I'd still put my money on drug eruption.

PF

"PF Riley" wrote in message
...

I'd still put my money on drug eruption.

Changing your mind, PF? g I thought you believed the rash was
virus-induced:

"The story you give is a classic presentation for a viral exanthem
being mistaken for a drug eruption."

Given that the antibiotic (drug) in question was amoxicillin and that
the rash appeared 48 hours hours after the initial dose was given
(considerably sooner than a "typical" amoxicillin rash would appear), I
think it's likely, based on what I've read, that the rash was/is due to
a virus (i.e., that your initial assessment was correct).

(PF Riley) wrote in message ...
On 5 Dec 2003 04:04:15 -0800, (Mark) wrote:

Your son is having what's called a Gianotti-Crosti reaction (my
provisional diagnosis, based on your excellent history and photos).

Another exanthem with a name. I'd have to disagree on this one --
Gianotti-Crosti is an acrodermatitis, and this kid has significant
truncal involvement.

I'd still put my money on drug eruption.

PF


Mmmmmm...I dunno. I still say it's Gianotti-Crosti. Mostly because
it just rolls off the tongue so nicely. I wish I spoke Italian
better; such a passionate-sounding language.

Mark, MD

On Sat, 06 Dec 2003 17:38:08 GMT, "JG" wrote:

"PF Riley" wrote in message
...

I'd still put my money on drug eruption.

Changing your mind, PF? g I thought you believed the rash was
virus-induced:

"The story you give is a classic presentation for a viral exanthem
being mistaken for a drug eruption."

Whatever. I guess I meant to type, "I'd still put my money on
[whatever I said before]."

PF, reminding you all not to drink and post!

Our son Josh is having a rash that's even strange to the doctor.

Do you use scented laundry detergent or fabric softener? My son gets a similar
rash to those. The fabric softener sensitivity began when he was about 9--he
was fine with it before then. The laundry detergent sensitivity didn't begin
until last spring when he was 15. His rashes would come and go too depending
on what he was wearing.

Just a thought.


Maryilee

Maggie's Christmas page
http://www.angelfire.com/vi/maggie/c...spictures.html
Info on hereditary spherocytosis
http://www.angelfire.com/vi/maggie/spherocytosis.html

Studies in children and adults seem to
show that at most 4% of people with a history of penicillin allergy
have a positive skin test (the most accurate screening test) and, of
those 4%, most do not have a reaction when given an oral challenge of
the drug. Therefore, less than 4% of people who think they are
allergic to penicillin actually are.

PF







Studies in children and adults seem to
show that at most 4% of people with a history of penicillin allergy
have a positive skin test (the most accurate screening test) and, of
those 4%, most do not have a reaction when given an oral challenge of
the drug. Therefore, less than 4% of people who think they are
allergic to penicillin actually are.

PF



I'm allergic to amoxicillin but I didn't have a rash; I had
hives...everywhere...for days. I'd be too chicken to do an oral challenge.
Yikes!


Maryilee

Maggie's Christmas page
http://www.angelfire.com/vi/maggie/c...spictures.html
Info on hereditary spherocytosis
http://www.angelfire.com/vi/maggie/spherocytosis.html

"C Du" wrote in message ...
Our son Josh is having a rash that's even strange to the doctor. Basically,
he got a rash two days after taking antibiotics for the first time
(Amoxicilin). The rash looks like red small dots (see photos in the web page
below).

Hi!

I've read your history and looked at the pictures (nice documentation,
by the way), and read the thread. I think you got some good
responses, and I'm glad that your son seems to be doing better. One
of my daughters seemed to have an allergic reaction to amox., a couple
of years ago, (woke up screaming, covered in hives) but hasn't had an
opportunity to be prescribed antibiotics since, so we're still not
sure.

I wanted to mention, though, on a totally separate note, that my other
daughter had a rash just like your sons, covering her whole body, and
it happened several hours after the second time she'd eaten eggs. It
didn't bother her at all, but I was shocked. We went to the ped.,
knowing we'd just introduced eggs, and she did a blood test for
allergies, and my daughter tested positive for eggs. The ped said it
looked like ezcema. We got an allergist, who said it was impossible
that she would've reacted so slowly, and the blood test wasn't
accurate, and she would've been in serious pain/intense itching if
she'd been covered in ezcema. Anyway, he did a scratch test, and lo
and behold, she was allergic to eggs!

That was a year ago, and she's still sensitive to eggs, if I eat them
(she tells me 'there's eggs in there!' if she's nursing after I've
eaten eggs; but I avoid them 99% of the time. It's only tough now
that she's nursing just 1-2 times a week), and once she got some
accidentally in a box of imported cookies, and she had a severe asthma
attack for which she was later hospitalized.

So, best of luck with whatever you're doing now...and if this rash
reappears, please try to consider some less common reasons for rash --
our allergist says that only 2% of ezcema is food allergy related, and
that my daughter's case is atypical ezcema anyway, but we're very
grateful we figured it out.

Tina.