Leaking after pilonidal surgery

#1
Hi guy,
So i had the drainage surgery around 2 years ago. Which of course after it came back to me. Last week i had surgey again to aparantly remove it from its root. The wound was left open and ive got to get it packed (dressing) everyday. But today i noticed some dry blood between my bum cheeks and liquid has leaked through a little bit. Is this normal? Im getting abit worried. Also my nurse tells me its ok to shower but that worries me too.

Looking for some advice guys please!