To ask what this is

[WLAH]

Ds complaining stiff shoulder during the week now this rash appear yesterday and more on back/chest today. Its burning/tingle tonight

Flea bites possibly

Have you an animal or been out in grass areas?

Shingles?

He would be with animals and clothes are line dried
But the stiff shoulder was making me thing shingles

www.nhs.uk/conditions/shingles/

Looks like when ds had shingles age 7.

Looks like shingles.

I'd say shingles too.

Ringworm?...

The tingle/burning you describe definitely suggests shingles. Poor him.

Shingles

Looks like ring worm

It looks very much like shingles. He needs to see a GP as soon as possible if so, as anti viral medication might be needed.

Yep shingles

Another vote for shingles.

Likely shingles my husband had it a few months ago www.nhs.uk/conditions/shingles/

Very painful. Poor love.

I could be wrong, but don’t you have to had chicken pox first, before you are vulnerable to shingles?
I’m not completely sure, but that’s what I’ve always been taught.

Nettle stings ?

Just out doctors. Yes shingles

Got anti virals