Is it a spider bite?!
Question:
Is it a spider bite?
my mom has been having trouble moving her knee, she's had this red spot on it, and it's been getting bigger as the days go on, should I be worried.
Answers:
do you live in a area where the brown recluse spider lives? a brown recluse can be a serious bight and the results are somewhat like what you describe. it will start out something like a pimple and then as the poison spreads out into tissue it kills that tissue. they can be seirous and time is important in the treatment. if you suspect a brown reclus bight, get your mom to go to the emergency room. or at best see a doctor tomorrow. but the longer she waits the more the poison will spread.
she could also have some kind of staff infection not related to a bug/spider bight which also needs to be looked at by a medical professional.