Not an expert, but I've had a rooster dig a hole in the side of my hen with his spur and claws. When I first noticed it, there was a 3" diameter area of messed up scabs and bloody injury. It was all pretty dried and crusted except for the most recent damage, so I did nothing to the wound but put her in the isolation cage within the covered coop/run so she could stay with the flock but avoid the attentions of the rooster. Within a week or two, she had totally healed, and most of the scabs had fallen off. She was feeling better and started laying eggs again. It's amazing what they can heal without even any medicine. I've put Neosporin on such things in the past, or Vetericyn, or even just Bluecote for minor injuries. I'm sure those help, but they can manage without if they have to.
The rooster is human aggressive, and on the cull list anyway, since he's actually a meat bird and the few hens he's managed to catch and fertilize have not had high fertility for whatever reason. So I'm going to go in a different direction with my meat bird breeding project and he's going to be dinner as soon as I get the time and the weather cooperates. In the meantime, I'm keeping the only hens he can catch away from him.
This past weekend one of my kids let the hen out of the isolation cage into the regular coop/run unbeknownst to me (I was pretty upset about it - I showed the kids the damage to the hen so they wouldn't make that mistake again), and in the time before I noticed, the rooster ripped a 2" gash in her side and her flank muscles were exposed. It looked pretty clean, so I put her back in the isolation cage, and I expect her to make a full recovery in a week or two.
All that to say, if you gave your chicken stitches for such a wound, super kudos to you as an owner. I don't think it will hurt her at all, and may speed her recovery. You probably see all the posts that don't mention stitches because it's not in everyone's capability to do, and folk may not think it's needed. I think your hen will heal up just fine, and you should be able to take them out once she heals no problem. In some ways, chickens are amazingly resilient. If she develops an infection for some reason, you may consider systemic antibiotics or topical antibiotics - there's lots of info on this site to help you pick one. Be aware, most systemic antibiotics are for birds that will not be eaten, but sounds like she's a pet, so that's fine. Also, her eggs should also be fine once she starts laying again. Make sure she and the other chickens can't pick at her stitches - might need to wrap the wound in vet wrap or something over some soft cotton.
Hope she heals very soon! Good luck!!!