Hi everybody! My mom has had two very serious scls flares that were nearly fatal. They happened 5 years and 3 years ago. After the second episode she has been given ivig every month. She has had no episodes since then. Sometimes she has a little bit swelling in her calves. No in a few weeks she has had three episodes that caused swelling only to her left thigh and also pretty bad pain in the side of the thigh. She went to hospital in the third time and they examined her. They checked with ultrasound and there were no blockaces in the veins. Her bloodtests were all fine, hemoglobin albumin etc. The swelling and pain seem to go away on its own in a few hours. Has any of you experiensed something similar and could the swelling and pain in one thigh be a minor scls flare eventough her bloodests and blood pressure were fine?