Body piercers please help!!!!!!!!! ergent?

i got my cartilage pierced around 8 months ago and after 8 weeks the another piercer said it was healing the best shes ever seen for that time and she told me i cpould change it so she did and i had a little bump at the back that eventually went now a couple of months ago i got this blister looking bubble pon the back and its reallly worrying me and just 2 minutes ago i cleaned my piercing and put a little pressure on the bump now its oozing blood but doesnt seem to be getting smaller!!!!!! please help im really worried and i dont know what to do its really bugging me if it helps its a to titanium bar. plz im desperate and i dont think its a keloid cos its big and it doesnt really look like it!!!!!!! it looks something like this http://www.google.com.au/imgres?imgurl=http://www.askmehelpdesk.com/attachment.php%3Fattachmentid%3D12126%26stc%3D1%26d%3D1221199418&imgrefurl=http://www.askmehelpdesk.com/body-art/nose-bubbles-someone-know-259571.html&usg=__BlUwTSuKSN5Ypxf-7Ye8YqH-7PY=&h=461&w=615&sz=38&hl=en&start=0&zoom=1&tbnid=L6pfOq7TD13QHM:&tbnh=161&tbnw=216&ei=lbRLTarpFoTuuAPBpf0a&prev=/images%3Fq%3Dblister%2Bbubble%2Bover%2Bback%2Bpiercing%26um%3D1%26hl%3Den%26biw%3D1676%26bih%3D827%26tbs%3Disch:1&um=1&itbs=1&iact=rc&dur=94&oei=arJLTajTJ4bSuwP4wuHODw&esq=8&page=1&ndsp=30&ved=1t:429,r:10,s:0&tx=125&ty=111 plz note this is not my piercing its just a pic off google my piercing is a cartilage thnx