Dermal filler caused superficial thrombosis? (Photo)

About 4 months ago I received a hyalauric acid base filler in the apples of my cheeks for the first time and my usual Botox on my crows feet. A couple of weeks later, I noticed a hard liner lump on my crow his slightly tender to touch. I went to my doctor who said it’s a superficial thrombosis maybe caused by the Botox nicking a vein. I didn’t get a bruise from the Botox. Could it be from the filler compressing a vein that is causing the clot? And when will this go away? I’m concerned