It's a common cold due to multiple things you mentioned.theirs a few easy step to resolve it.start with steam bath and inhaling steam at least thrice a day .
Next Steps
for medical treatment
take tablet.cetrizine (its anti histamines) commonly used in patients having cold.
tablet paracetamol 500 mg thrice a day for first day .then morning evening for next 2 days.
capsule pantoprazole 40 mg morning evening for three days.
Health Tips
keep yourself well hydrated by drinking plenty of water.
please go for blood checkup as the above mentioned treatment is for fever resultant of cold and for those due to infection (bacterial ,viral ,protozal ,etc ) is different.