In this task you are given a medical question pair hand-generated. Your task is to classify a given post into two categories 1) 'Similar' if the given two questions have a same connotation 2) 'Dissimilar' if the given two questions have a different connotation or meaning.

Sentence1: I've had a bump in my groin area for about a year, recently  a burning sensation. And in last two days it turned red and the bump Bigger and more pain? 
 Sentence2: Do I need to worry about a bump in my groin area which has been there for the last around one year?
Dissimilar

Sentence1: Does lung cancer always effect oxygen levels. 
 Sentence2: I was diagnosed with lung cancer and I have been on therapy. My oxygen saturation levels have been around 90% and I am worried if this is ever going to improve. Should I ask my doctor if therapy needs to be changed?
Dissimilar

Sentence1: Can the ointment mupirocin USP 2% cause a rash when applied if its expired? 
 Sentence2: Hello doctor, I am using Mupricoin for my wound and it healed and now can I apply bandaid after applying mupriocin?

Dissimilar