YOU SAID:

the sunshine makes me itch uncontrollably

INTO JAPANESE

太陽の光で抑えられないほどかゆくなる

BACK INTO ENGLISH

I get itchy uncontrollably from sunlight.

INTO JAPANESE

日光に当たるとかゆみが抑えられなくなります。

BACK INTO ENGLISH

Exposure to the sun can cause uncontrollable itching.

INTO JAPANESE

太陽にさらされると、制御不能なかゆみが生じることがあります。

BACK INTO ENGLISH

Exposure to the sun can cause uncontrollable itching.