HELP ⚠️

All day I have been feeling sore on the lips of my vagina but only on the right side. I knew something was wrong so when I went to take a shower I checked and there was a pretty big bump on the area located in the picture below. I don’t know if this was the right choice but I ended up popping it and yellow puss came out , it is still there but it has gotten smaller and I no longer feel sore/ pain when i walk or move. I am sexually active but with only one person and I am nearing the end of my period. I don’t know if that’s significant to my problem but please help! Have anyone had this problem before ? And is t normal ?