Is swelling 4 days post Melanoma Removal normal?

I had a melanoma removed from my neck on Tuesday and had over 40 stitches. It is now Friday and it has started to swell today. What should I do? I have been sleeping on multiple pillows, taking anti-inflammatories. I haven't felt much like eating. But I have eaten small meals this week. The area isn't infected at this point. However it feels like the skin is pulling towards the back of my neck. Please help

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