OT, wield blister from bug bite?

[kimmidwife]

Not sure if this is related to my younger daughters Crohn's disease or not.
About two or three weeks ago my little daughter came home from a friend with a small pus filled blister on her ankle. She said it burned. I called the doctor they said put cream and a bandaid on it and see how it looked in the morning. It stayed a few days and then went away.
Last night we went on an evening walk. When we got back to the car she started complaining and crying that her leg was burning. I looked down and on her ankle was another blister. We took out the first aid kit and cleaned it put some neopsporin and a bandaid on it. I had her shower well when we got home. This morning she complained that it was heating again and now the whole area was reddened about an inch to two inches around and the blister was slightly bigger.. I marked the area with a marker and put some anti histamine cream and a new bandaid over the blister.
I looked online for answers and the only thing I came up with is an unusual reaction to mosquito bites. Has anyone heard of anything like this?
The blister does resemble poison ivy but I don't think it is as poison ivy takes hours to break out after exposure and this literally was instantaneous and also it is only one blister and poison ivy is usually multiple blisters.
I know some others here have kids that have weird allergic reactions so wondering if anyone else's kids have had a reaction like this to a mosquito bite and also wondering if this could be a Crohn's thing.

 

[D Bergy]

I would guess it's a spider bite and sometimes staph infection will accompany a spider bite.

Dan

 

[kimmidwife]

Dan,
I thought about spider but I don't think it is because every spider bite I have seen you can see two little holes. This one you definitely can't.

 

[my little penguin]

Please check sweets syndrome
The lesions can resemble bug bites /hives /pimples etc lots
Any other symptoms with it
Fatigue
Joint pain
Abdominal pain
Fever ???

Sweets is common with crohns
But there is also PG and en

 

[kimmidwife]

MLP,
Lots of stomach ache complaints but with her sometimes I can't tell if she is just complaining or if they are real. nothing else really except her constipation is back again which might be causing the stomach aches.

I looked it up, it doesn't look the same. This is just one blister filled with fluid and a diffuse (light colored) redness in a large circle around it on her ankle.

 

[my little penguin]

That is how ds started
Red gooey center with pale then red ring( not Lyme disease rash)
Different than hives but similar
Allergist actually thought hive at first

Only single lesion lasting a few days at a time
Now he gets a singke lesion that multiples over days to about 20 of them that look like tiny pimples ( same red center pale outside with ring ) old crops get replaced with new crops and last a week or so
No scaring
Biopsy is the only way to know for sure
We waited 5 months of reoccurances before doing a biopsy

Derm can help

 

[my little penguin]

I will say with ds
The spots show up and either slightly before or after he has flu like symptoms which are much worse than the rash in his case