Thanks for the query,
You might have developed photodermatitis.
Your description even looks somewhat similar to DLE.
Please get your blood ANA profile checked.
Apply a mild steroid
lotion like desonide
Also take an antihistamine tablet.
This will give you some relief.
Please meet a dermatologist
for exact diagnosis.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.