My dogs abcess on day 2 of draining is hard, should I be worried or is this normal?

Hi! Just a worried dog mom over here, so my poor Boston terrier developed an abscess about 2 days ago and got tubes in for the draining. But today , day 2 of drains her tummy is rock hard where the abscess is and is having extra discharge but I’m not sure if this is apart of the healing process or not. She’s visibly feeling better and acting completely normal. I’m just worried and I’m sorry if this is the wrong group to post in! Just never had an animal deal with this before and I’m unsure wether or not I need to take her back to the vet?