Obagi is the name of the dermatologist in Southern California who has developed a fairly famous line of skin products.
Obagi is not a single product but the name of that skin product line.
Most of the products or over-the-counter and non-prescription though there are a few that are prescription based.
Swelling is swelling and is not helped by skin products. Skin discoloration it can be caused by a multitude of causes.
Most likely any skin discoloration after surgery simply needs time to heal.
Mats Hagstrom M.D.