У дочки была маленькая сыпь на шее, но к вечеру она прошла.

My daughter had a small rash on her neck, but by evening it went away.

Breakdown of У дочки была маленькая сыпь на шее, но к вечеру она прошла.

• маленький: small
• быть: to be
• вечер: the evening
• на: on

Questions & Answers about У дочки была маленькая сыпь на шее, но к вечеру она прошла.

Why is it у дочки instead of just дочка?

Russian often uses у + genitive to express that someone has something or that something is with / on / affecting someone.

So:

У дочки была маленькая сыпь
literally means something like At the daughter there was a small rash,
but in natural English it means The daughter had a small rash.

This is a very common Russian pattern:

• У меня есть брат = I have a brother
• У ребёнка температура = The child has a fever
• У дочки была сыпь = The daughter had a rash

So the possessor is not the grammatical subject here.

Why does дочки end in -и?

Because у requires the genitive case, and дочка in the genitive singular becomes дочки.

Basic pattern:

• nominative: дочка
• genitive: дочки

So:

• дочка = daughter
• у дочки = of the daughter / with the daughter / the daughter has

What is the difference between дочь and дочка?