I'm wondering what the bump would be under my skin near my tear sac? When should I see the dermatologist? (photos)

I have a acne prone skin and I'm on accutane. A bump or a cyst was noticed near my eye about a week ago;I thought it's a cystic acne at first.I was prescribed an antibiotic creme to apply on daily.I don't have any pain in the area.It's slightly red and a discomfort feeling.It's also not hard or doesn't have a watery feeling to it.

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