If you feel you must drain them once they come to a head, use a sterilized pin and very carefully open the top rather than squeezing, and pull the skin
gently away to let it drain. If you squeeze, you can force bacteria and pus
farther in and make it worse.
You really should see a doctor though, since these are recurring. One could turn into a worse infection. Try not to be embarrassed; trust me, they've seen much worse.