- I just wanted to also add that I have been diagnosed with a white tail spider bite on my toe back in Sept 2011 which was a very painful burning blister underneath my toe at the time. (The spider was not seen by me) I immediately went to see my GP who gave me 2 weeks of antibiotics. It seemed to clear up that was until small clear fluid type blisters kept forming in the original region I was bitten. However on 20th Jan 2012 I had 4 very painful brown spots with white halo's surrounding and a large 10cm red area come up on the inside of my elbow??? Again went to my GP who suspected cellulitus from that bite I was sent straight to Emergency at the local Hospital to commence IV antibiotics and I am still on them (up to day 9 so far) The wound is huge and now looks like a very blistered sunburn.