Hi
Yes you can have fever.
It is an inflammation of the sinuses and nasal passages. Sinus infection causes by viral , can further cause a viral flu.
Also tonsillitis is another complication.
You need Antibiotics course , along with decongestants , and antihistmaines.
Source-
http://www.emedicinehealth.com/sinus_infection/page6_em.htm
Thanks
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