Hi, I have have been attacked by hundreds of fleas on/6/3/16. On 6/5/16, we treated the whole house and and pets. After, my rash spread and worsened to my arms, hands, legs, ankles and feet. Now, I have joint swelling, especially in my left ankle and foot with excruciating pain! My Dr. said it may be HSP?? and wants to retest blood and urine on Tuesday. Could the bites have triggered this and should I worry? Thank you! Donna