Asthma and Allergy Expert Forum
Walnut powder allergy
About This Forum:

This forum is for questions and support regarding: Allergies, Asthma, Chronic Cough, Sinusitis, and other Respiratory Disorders.

Font Size:
A
A
A
Background:
Blank
Blank
Blank
This expert forum is not accepting new questions. Please post your question in one of our medical support communities.
Blank Blank

Walnut powder allergy

My three year old nephew has never shown signs of walnut allergies until recently.  He was helping cook a cake when he used his hands to put chopped (pre-packaged) walnuts into the cake batter. Since they were chopped there was a lot of walnut powder in the package, as well.

In a matter of minutes he was covered in a lacey rash on his hands, forearms and face.  He did not exhibit breathing problems. He was given a bath within minutes and his body cleared up.  Is it possible that he is allergic to the powder of the walnut?  Could he be allergic to the powder and not the nut?  Is it normal to show allergic reactions after having been expos.ed in the past without problems?  He was recently treated for Fifth's Disease and thought this may have had something to do with the reaction, as well?  Should I be concerned with giving walnuts as a food item?  Lots of questions. I look forward to hearing from you.

T. Levine
tarri.***@****
Related Discussions
242588_tn?1224275300
I would be concerned that your nephew’s rash was related to exposure to walnut protein, particularly if it was itchy.  If he is allergic to the powder he is likely allergic to the nut.  I think he deserves to be skin tested to walnut, but I can’t guarantee that it would be positive.  I would not feed him walnuts or pecans until he is evaluated further by a board certified allergist.

I hope that helps.
2 Comments
Blank
746512_tn?1388811180
I can only answer to part of your question.  Yes it is possible to develop allergies to something that has been normal.  Most allergies are developed over repeated exposure to the allergen.  The science behind an allergy is that you can not be allergy to something until you have been exposed to it, before that it is just a cell exposing an antibody, it must react with the particular antigen and cause an immune response.  

Blank
Continue discussion Blank
Blank
Request an Appointment
MedHelp Health Answers
Blank
Weight Tracker
Weight Tracker
Start Tracking Now
RSS Expert Activity
469720_tn?1388149949
Blank
Abdominal Aortic Aneurysm-treatable... Blank
Oct 04 by Lee Kirksey, MDBlank
242532_tn?1269553979
Blank
The 3 Essentials to Ending Emotiona...
Sep 18 by Roger Gould, M.D.Blank
242532_tn?1269553979
Blank
Control Emotional Eating with this ...
Sep 04 by Roger Gould, M.D.Blank