Ive Got A Operation For A Anal Abscess Tomorrow And

Ive got a operation for a anal abscess tomorrow and I'm scared about the recovery process healing and packing. Can I ask for air and gas while having the first unpacking and re packing with my local nurse ? As I've heard it's very painful by a freind and posts I've seen online . Also I haven't taking the full courses of antibiotics I've been given in full because they made me act and feel strange