How to soothe skin when you have a sun allergy?

hello~

I'm writing to inquire about my allergies, which have been causing me a lot of stress and difficulty.

It's none other than a "sun allergy." It wasn't something I had before, but it's been going on for about 10 years. Suddenly, after being exposed to sunlight, it started to itch, then turn red and sting. It's the same on the back of my hands and the inside of my arms. I seem to have an allergic reaction when exposed to sunlight, but the back of my neck is the most painful.

The back of my neck is really itchy. If I don't take care of it properly and get exposed to sunlight, I get an allergy and after a few days it starts to tickle and then it gets itchy. Especially when I sweat or am nervous, the back of my neck feels like it's being pricked by needles. It's really itchy at that time. I should be applying sunscreen since spring, but I sweat a lot so I don't apply sunscreen often, so it's a vicious cycle;;; After being out in the sun, I apply aloe to cool down at home...

I wonder if protecting my skin with something like sunscreen would be the best way to go forward...ㅠㅠ

Are there any skin care products that can help with allergies? I'm curious about ways to soothe my skin...