I was diagnosed with Cellulitis also. Does that cause blisters??
Does it cause blisters? You betcha! And then some!
How do you avoid it next time? Well, cellulitis occurs when bacteria, most commonly streptococcus and staphylococcus, enter through a crack or break in your skin. My case of cellulitis was actually caused by a tiny instance of DVT in the vein in my ankle.
I'd been to church where I used to do some quite vigorous flag waving but half way though the service, I was take ill with nausea and vomiting and had to flee home. Crashed out on the settee from about midday to midnight, woke and thought my leg felt strange. Flung the blanket back to find my entire leg from mid foot to mid thigh was a bright strawberry pink!
Called my GP first thing in the morning who paid a house call, took one look at my big red leg and with great jollity, informed me I had "as good a case of cellulitis" he'd ever seen. I was off sick for 12 weeks and on prodigious amounts of antibiotics all that time. Just praying that he would want to admit me!
But it eventually settled down at which time, I found a trough in my ankle I could lay my little finger in. When I told my friend (a surgeon) at the hospital, he told me about the DVT thing and asked me if I'd had a cold or a sore throat 2-3 weeks before this showed up. And I had! So that was the source of the infection and we presumed it settled in that vein in the ankle and thus caused the cellulitis!
My experience was quite as intense as yours but very different. It's dreadfully painful, isn't it? Each time I got to my feet, I thought my leg was literally going to explode!
So I'm telling you there are no preventative measures you can take and often as not, you won't even know what caused it in the first place. Sorry about that, but it's one of those conditions that defies analysis. However, I do think the chances of you getting it again are remote.