I'm really not sure of this blackhead removal remedy but heard it works well

Blackheads are caused when the pores get a bit bigger and dead keratinocytes that are exposed to air, oxidize into the pores. A great way to remove blackheads is to use gentle chemical exfoliants. You may have heard of salicylic acid (derived from willow bark tree) which is Beta Hydroxy Acid (BHA), an oil-loving acid. BHA is preferred for oily, acne-prone skin and is helpful in treating blackheads and whiteheads. BHA can get through the oil that clogs the pores and helps to normalize the lining of the pore that contributes to acne. BHA’s have anti-inflammatory and antibacterial properties. So, you can try Innisfree super volcanic pore clay mask or green barley Gommage peeling mask, both contains AHA and BHA, Glycolic acid (AHA) and salicylic acid (BHA) to promote the skin's turnover cycle for velvety smooth skin.

To get rid of blackheads you can follow the following steps:

First, take steam, This is an effective way of softening the stubborn blackheads. Steaming the face makes the skin sweat, which in turn helps to clear out toxins from within.

Second step- Use super volcanic pore clay mask 2x or green barley Gommage peeling mask.