Hello. Thank you for writing to us.
History of
connective tissue disease is a significant point in your case and the red rash that you have developed is most likely due to
photosensitivity that accompanies connective tissue diseases.
Connective tissue diseases/ CTD's like Systemic
lupus erythematosus (SLE), Dermatomyositis (DM), Scleroderma etc present with photosensitivity.
There can be other associated symptoms like joint pains, muscle weakness, oral ulcers, fever etc in connective tissue diseases.
These need to be specifically inquired for in your history.
Apart from the history you also need to be investigated thoroughly and that would help in classifying you into one or the other connective tissue diseases.
Management would include use of a broad spectrum sunscreen throughout the day. It should be reapplied every 2-3 hours.
Specifically for the
photosensitive rash I would suggest you to use a moderately potent topical steroid e.g fluticasone propionate 0.05% cream, twice daily.
I would suggest that you visit a
dermatologist for the needful.
Regards