What can you tell me about infected manroe peircings?

ok well i have a manroe peircing for like 2 months no but the peircer has had 2 changer it 3 times due to sweling increase then deacrease and now i have a hard bump on the inside and i think it might be infected i use alcohol free mouth wash and the sprey they gave me at the shop .........when i first saw this i used hydregyn peroxide but that didnt do anything...any ideas????