Anyone know what this rash is? pics

Ok so for quite a while (weeks, possibly months) my boy has had this rash - but just recently it's been more angry looking and has really flared up.

It looks like some sort of allergy rash to me, but I don't know. We use Persil Sensitive washing powder and huggies sensitive bathwash. I was wondering if it could be from kiwifruit (but had none today and is still bad) or from dairy (but he's had dairy for ages). He usually wears a body suit under a long sleeved tshirt so I don't think it's from things (ie carpet, grass) rubbing on it.

The rash is on his front and back - yesterday the front was the worst, today the back is.

He's otherwise happy and not sick (no temp etc).

Any ideas?

(Sorry the photos are big but it's so you can see the rash properly.. these pics were taken after his shower tonight, the rash was there before as well though... all pics are of his back)

Ouch, poor wee boy. Looks like the rash I used to get after being in long grass but I'm guessing that wouldn't explain his rash.

The Dermatology Society of NZ website is really comprehensive, is searchable and has lots of photos of different disorders but hopefully someone might be able to give you some ideas so you can narrow the search on the site.

Thanks for that guys - it looks rather like a viral rash doesn't it?

ETA: I had thought it might be hives but looking at these photos now I don't think so (ouch that person's swollen face)

Brilliant website by the way

Edited by arohanui

If you think it might be food related you can start eliminating things to see if it improves. Some allergies build up over time, so for example Spencer can now tolerate small amounts of dairy in baking but if he was to eat yoghurt he comes out in a rash. Take out anything you suspect for 2 weeks and if no different then try something else, you really do need to do it for two weeks to notice a difference though, one day won't tell you as it will still be in their system.

Also are you using the new persil double strength stuff? (or whatever it is they have changed to?) cos a friend of ours little boy had reacted to that and she's found swapping him to ecostore has fixed it, he didn't react to the non concentrate stuff.

It looks like a viral rash daniel had and I posted photos of it too, he was covered in it all over his back

Jett has it too although jetts looks alot more like hives, it started on sat after i took him to the after hours doc for something else (typical) but jetts started on his face his entire head was covered in it then it went away and came back on his arms & back & has returned on his face every afternoon, the doc also said its viral, and could be from anything from a plant to food, clothes,

I get a similar rash from detergents normally with aloe vera and amoxicillian (and heaps of related drugs).

I can only use surf washing power and persil sensitive (although im sure i use to react to it) i cant have fabric softeners and i react to a few shampoos like VO5. I use to be given like of telfast and loratabs to get rid of the rash.

Mine is only ever on my arms legs or torso but never on my face. The rash i get is always itchy tho and depending on what i react to is usually only a couple of spots although amoxicillian causes lots

Hope you find out what it is