Antiseptic cream?

So I've had this painful sore inside my nose and and it's pretty swollen to so my mum got me a antiseptic cream and I also have anxiety but I've always been anxious to take medication or creams or anything like that because of side effects or allergys but I don't know if I'm allergic to anything... show more So I've had this painful sore inside my nose and and it's pretty swollen to so my mum got me a antiseptic cream and I also have anxiety but I've always been anxious to take medication or creams or anything like that because of side effects or allergys but I don't know if I'm allergic to anything or not and the cream is giving a lot of warnings of an allergic reaction, it says on there 'parahydroxybenzoates may cause an allergic reaction' so now I'm kinda paranoid
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