Dermatology Questions? Ask an Online Dermatologist.
Sorry to hear about your husband
Do you have some pictures that you could share with with me on here.
Can you please attach more clearer pictures of the rash in better lighting so that I am able to give you a better opinion.
The other expert opted out of the question
Was a biopsy taken of this?
OK--did any of his doctors do any specific blood tests related to this?
I suspect this is something called cutaneous porphyria
It's a hemoglobin metabolism problem and it's diagnosed with specific blood, urine, and stool tests.
It's treated with periodic blood draws, Plaquenil, and beta-carotene
I suggest he talk to his doctor about the tests
Let me know if you need more information please
Even without sun exposure that still could be the problem
And it doesn't have to be a life-long condition--it can take place at any age
The other possibility would be an autoimmune dermatitis and I would also screen him with antinuclear antibody, rheumatoid factor, sed rate, and C reactive protein