I had sclerotherapy (3rd time) & also laser treatment done approx. 2 weeks ago to treat spider veins on my legs. After the treatment, I developed red circular spots (that look like cigarette-size burns) all over my legs. Some even turned to blisters. I noticed some of the marks are fading but most are still red 'scabs' w/ bright pink underneath. I'm terrified that I will be left w/ these scars. Is there anything I can do to avoid scarring? How long will they take to heal?