Cording 7 months post surgery?

Worth remembering that fluid build up in an affected limb impedes the body’s natural ability to overcome germs. Over seven year with lymphoedema I have only got cellulitis once, but it was a salutary lesson about how easy it is to get an infection that my arm can’t manage. As @Nadi says, treat any cuts or abrasions on the affected limb with care and immediately. My cellulitis was almost certainly caused by a manicure (so won’t do that again!) but simple things like scratches from roses or cats can do it too. Just normal, pandemic type hygiene will do the trick!