I know we all love a rash identification thread 
This is me, after I got out of the shower today. I have various undiagnosed allergies, mainly food. I'm off to addenbrookes to be tested next week so I've had to stop the daily antihistamine and low dose steroid I'm taking.
The last few days I've had this awful, super itchy rash after a shower. I thought it might be the shower gel, even though it's a fragrance free one so didn't use that the next day, but it still happened. Tried having the water perfect body temperature in case it was the heat, but still the same. So what, is it just water?! How on earth can I ask to be tested for a shower water allergy?!
The rash is raised on my face, neck and arms, but flat and blotchy on my chest. My palms were itchy and blotchy too, and a few little itchy hives on my stomach, back and shoulders, but the lower half of my body is almost totally unaffected. It itches like hell, and takes around 3 hours to subside. We live in a very hard water area, so may be a factor? I'm also pretty wheezy when I get out, which is the most puzzling part.
So what on earth could it be? Anyone else have a mystery post-shower rash?
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So what's this rash then?!
Myusernameismud · 31/05/2019 21:09
Hmmm simplysteve I have quite a lot of those symptoms! I've had pleurisy twice in the last year, a lot of joint pain and fatigue too, but my GP always put the fatigue down to poorly controlled asthma.
I get this rash on my cheeks when I've been on the sun, but it's not sunburn because I literally only have to be out for 5 minutes for it to happen. Excuse my amateur attempt at disguising my face
That's really helpful allwrite, thanks. I guess I'll see what the allergy tests flag up next week and go from there. Although the idea that nothing really helps it isn't so reassuring, I was hoping it was something that could be fixed 
Nothing 
I'm already on 4 antihistamines a day. Sometimes a cool bath or a fan on me can help
Nope, none at all
My mum has bad hay fever. It started 23 years ago and hasn't gone since. I do have dermographism as well. It's change of temperature that does it for me so summer is ok as already warm, exercise in winter is the worst, or if I get really stressed it comes up
I have a suspicion it's autoimmune as I am gathering autoimmune conditions, or as the doctor puts it "you like things that are rare, and hard to spell" 
@allwrite I had my allergy tests done last week and they were inconclusive
I mentioned aquagenic urticaria and the allergy specialist said she'd never come across it in 30 years so it was unlikely to be that. Her specialism is nut allergies though, so I'm thinking of asking for a derm referral. They've discharged me from allergy and referred me to the severe asthma team!
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