Hacker News new | ask | show | jobs
by wslh 2846 days ago
Not a doctor but same experience and took a scientific approach which at the end was just about removing food and having a clean home. I wrote a short comment about this before [1] but will expand here:

1/ You need to know the kind of reaction they have. Go to the allergist. If they are gastrointestinal or if they are respiratory or of another kind. The first type can be solved after one year, the second is more dangerous with risk of anaphylactic shock.

2/ The allergist will do a blood study and patch tests. If it is respiratory it will show specific immunoglobulin types. If it is gastrointestinal it is probable there will not be immune system reactions then it is about trial and error, incorporating one by one the top 8 allergenes within an interval of 15 days. Some reactions are delayed until 15 days. It is important in these cases to 100% isolate traces of food with specific crockery for the child including cleaning sponge, etc.

My first daughter was cured after the first year, the second one continue to have issues with some cheeses and "dulce de leche" [2] and rice. These produce hippus and some small behavior changes, nothing terrible.

[1] https://news.ycombinator.com/item?id=15082349

[2] https://es.wikipedia.org/wiki/Dulce_de_leche?wprov=sfla1

1 comments

This is true for IgE allergies, but many (sometimes life-threatening) mast cell reactions don't involve IgE and are very difficult to diagnose, since tryptase levels are very hard to measure properly, and the specific variant (alpha) of tryptase is relevant, and that pretty much requires a genetic study only available from one source right now.

It is always good to find triggers - but these can be very numerous (often secondary or transient) in MCAS (mast cell activation syndrome.) Tough job, if MCAS is at work.

> and that pretty much requires a genetic study only available from one source right now.

What is the source?

I forgot to mention that both daughters had blood in the stools after eating allergens. This is commonly connected with cow's milk protein intolerance but can happen with other allergens.