If it turns out your doctor says it as herpes, this was the absolute wrong thing to do.
Then soon I squeezed the yellowish pus out carefully and went to sleep.
That is a good way to have it spread on other parts of your skin.
Until you see your doctor, wear a condom to protect the spread of whatever it is to anyone else. While you are experiencing an outbreak of blisters, you really should abstain from any kind of direct physical contact with anyone else.
Go see your doctor. If you don't have one, go to any Planned Parenthood or other medical clinic.