Hi
Welcome to the MedHelp forum!
This could be due to either an allergic reaction or due to an insect bite or also possible due to deep vein thrombosis.
Please consult a doctor immediately to get this assessed.
Take care!
I cant think of anything but I know that the pain is getting worse and going further down my leg as far down as my ankle and the red splotches are more numerous
try and reflect on the past few days e.g. have you knocked it, been stung by a bee, changed anything in your diet etc. or possibly leave it for a few days to see if it goes, if not contact your doctor maybe?