down there? where? australia? if you are going to be having sex you need to start using the correct anatomical terminology. there are many things "down there" so i am assuming it is her vagina? or? it would not be possible to accurately determine the reason for her discomfort over the internet so she needs to be encouraged to see her medical provider so she can be properly examined. there can be many reasons from tiny fissures (tears) to infection.
is it normal for my girlfriend to be irritated down there after sex? . usually after sex when we begin again she complains that it hurts down there. we wait a little before doing anything and when i try i again it still hurts her. she is 20 years old and i'm the only person shes had sex with (i don't have any diseases)