I tend to get infections when ever I use my medicated psoriasis I was told they are staph infections. My skin dr Allen Mentor does not believe they cause my infections but I only get them when I use the cream. I have a bad infection at moment and I had it since Friday its now Monday I pop it and removed as much of the pus as possible and clean the area. Now today sticky green pus came out like mucus and lots of black blood flowed out. swelling has gone down but continue to seep out blood and water that have separated. and time to time it been throbbing. I just wish be sure I did not have MRSA I had this in past and tend go away the blood the flow red after a while.