Q: 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: Is it safe to use silicone gel sheet on acne scar on the face? 
 Sentence2: I have been using silicone gel sheets for my acne but heard they are not very safe. What would you recommend I do? Are there any creams I can use?
A:
Dissimilar