Part of the toe nail on my big toe has come off and it's pushing against the skin right next to it, and it hurts.
ーPart of the toe nail on my big toe has come off and it's pushing against the skin right next to it, and it hurts.
「足の親指の爪の一部が剥がれて、すぐ横の皮膚に食い込んで痛い」
part of the toe nail で「足の爪の一部」
big toe で「足の親指」
to come off で「剥がれる」
to push against the skin で「皮膚に押し付ける・食い込む」と言えます。
right next to で「〜のすぐ横」
ご参考まで!