weird rash? 9 weeks post op

About a week ago at 8weeks post op, I noticed this weird rash on my chest? I am prone to dry skin so I thought it might just be an eczema flare up and treated it as such with lotion/cream for that purpose. I don’t think it’s the scar gel causing a rash because I would have noticed a problem way sooner. I have changed up to an even gentler body wash. I’ve also gone back to taping with silicone scar tape in the evenings/overnight and the rash has been less bad since then. I think I might just need to go to the dermatologist. Anyone else experienced anything like this? pics in blue towel are a week or so ago, green shorts are from today.