Kesimpta side effects

Hey yall, I've been on Kesimpta for half a year now, first injection went kinda smooth with barely any side effects, ever since I never noticed anything from the injection. Well, until now. I injected a dose on tuesday this week... everything went well, but today I noticed swelling and redness around the injected area. It's also pretty hot and itchy... I just think it's weird, I never had this side effect, since my first injection had no side effects at all.. and now this? But I also do have a cold right now. So idk, was it maybe like not such a good idea to get my kesimpta shot while being sick? Does anyone have any experiences on that?