I was dealing with some muscle pain issues a while back and googled for advice on how to deal with it. All the top results were privately practicing physiotherapists singing the praises of bandages (that they also happened to sell). But then I went to a government-run health website with content written by healthcare professionals. That site said that there was no evidence that the bandages worked.

I hate the profit motive.

As to the specific issue of cellulitis, good news. If there is nothing immediately obvious about why you got it, then there's probably nothing to know. It's just a thing that happens sometimes. It's caused by existing as an alive organism in a world full of other alive organisms.

I can only get reliable results by calling a fucking hotline to talk to a professional

You should use those services, it shows there's demand for them. Also if you don't have a good one near you and your question isn't regional, you can always contact one in a another place. And there is always the library. They have people paid to help you find any information your heart desires.

One trick I use is to try to find relevant professional organizations and see if there are any publications. Sometimes you can find general-readership explainers. For more indepth stuff, documents written towards professional themselves are great. When my cats had health issues I looked up vet associations. I found a practice guidelines that briefly outlined how the issues are differentiated, diagnosed, treated, followed etc. It was good because the vet was a bit of a dope. Not research articles though, they can be misleading. For law, you look for similar thing: lawyers associations or legal clinics/non-profits or advocacy organizations that practice in relevant jurisdiction. Do not believe anything from a lawyer/lawfirm website if it is tending to convince you that you "have a case". They are parasites. And don't read case law, there is no way you can correctly understand the application.

Here is a search I did for your question: https://duckduckgo.com/?q=american+dermatology+cellulitis #1 hit: Cellulitis: Diagnosis and treatment (American Academy of Dermatology) use the navigation on the left, there are a few other related pages. If you want to know more for some reason, look up their citations in sci hub.

Add "before:2022" to your search query. Tada, actual information. As long as it's not very current events.

Your best sources will be a textbook on the general speciality from lIbrary genesis or similar and then digging through google scholar (with nexus for paywalled bits)

https://www.msdmanuals.com/home/ Use search feature to find what you are interested in. Its a legit source.

https://my.clevelandclinic.org/health/diseases/15071-cellulitis

Ecosia is the correct search engine. Finds less than google initially; better for nature always, more effective than AI when used correctly.

Cellulitis can be treated in several ways. First thing I would recommend is proper massage.