Can anyone tell me what's up with DS's fingers?

[Hassled]

If the photos aren't clear, there are raised ridges of skin on the tips of all his fingers - he noticed it last night. No itching or discomfort. Looks a bit like he's been in the bath too long, IYSWIM.

Possibly relevant info - recent diagnosis of Coeliac although not GF yet as we're waiting for the endoscopy. Also picked blackberries yesterday - I thought maybe some sort of reaction to something there? But he's not normally prone to allergies/reactions to stuff. Otherwise well, if slightly low iron levels (on supplements). Does anyone have any thoughts?

DD2 just had similar but more extreme after using loom bands - I suspect she might have a latex allergy.

Interesting that it's reminding you of an allergic response - maybe it was just something he touched. I might speak to a pharmacist when I get the chance.