My husband has a very swollen hand and arm up past his elbow the swelling in his arm is very firm between his elbow and shoulder it looks like a series of scratches but possibly bites he has had an ultrasound because he atrill fibrillation, pacemaker and is on Eliquist. Ultrasound which ruled out any clot the ultrasound was through arm up through the neck. the swelling has been there since last Tuesday and has not subsided at all. A rash has broken out around these pinprick bites they look like scratches but even look Like a little tiny bites. I'm very concerned any help would be Much appreciated thank you