Those pore strips are damaging to the surrounding skin and they don't get the clog out completely, if at all.

If I get a blackhead, I just keep hitting it with salicylic acid several times a day, to get it to exfoliate itself within the pore. A few days of that is usually enough to get it dried up and it will usually pop right out if I give it a wee bit of pressure around the sides. If it doesn't yield to slight pressure, I stop and give it some more days of acid treatment.