It difficult to comment on such short history,, sneezing is usually in allergic condition of nose , recurrent sneezing can cause throat pain and chest pain because of vigorous muscle contraction of neck and chest.
Controlling cause of allergy/ sneezing may decrease your symptoms of throat pain.if not associated with throat infection.
WBC is raised in many condition, it should be better co- related with your history..
Next Steps
Visit an ENT specialist for nasal allergy
and throat infection