4 or five years ago I had several incidents of Cellulitis about a 10 months to a year apart . Two on my abdomen after a cat scratch and an insect bite. One on a foot - insect bite again and one on my leg - insect bite. Since then I have applied tea tree oil or lotions to my abdomen and groin areas and insect repellent to legs and feet as a body lotion almost daily.and in any creases such as breasts and navel.
Result - NO CELLULITIS FOR 2 AND A HALF YEARS NOW.
Worth a try I think.
Hope this helps some one - I nearly died of toxic shock one of those times I had it and was on special care unit with kidneys shutting down. I use Plantation Tea tree lotion you can buy a a local supermarket where I am.