Severe throat pain when sneezing and unilateral throat discomfort when swallowing. approximately 4 weeks duration. what is this?

Strep Throat: Typically, throat pain would not occur when sneezing. However, throat pain with or without swallowing might be due a throat infection; for example, strep tonsillitis, or another form of tonsillitis. Untreated or under treated allergic rhinitis or sinusitis could lead to a tonsillitis and hence sneezing is coincident to the sore throat. An exam with rapid strep test might help sort this out.