instruction:
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.
question:
Sentence1: How do I tell the difference between an allergy and a sinus infection? 
 Sentence2: Can you tell me some OTC medications for allergies and sinus infection?
answer:
Dissimilar


question:
Sentence1: All of a sudden my ears stopped producing ear wax. What could be the cause? 
 Sentence2: Can I use q-tip to clear the ear wax?
answer:
Dissimilar


question:
Sentence1: I have really bad dandruff and ketaconazole shampoo did not work. What do I do? 
 Sentence2: I have been diagnosed with athlete's foot and was given ketoconazole cream. How long should I use it?
answer:

Dissimilar