Hi,
It seems you have a upper
respiratory tract infection. many a times it is associated with pain in throat,difficulty in swallowing, also
sinusitis -
sneezing,watery/yellowish nasal discharge, head ache fever,
body ache etc.
An expert's advice after a physical exam will be ideal. till then,
You will have to take antibiotic like
azithromycin, anticold tabs (any combination of chlorphenaraminemaliate+paracetamol+caffine),some cough expectorant&b complex. The medicines should be taken after food.
Pl. avoid cold,spicy,sour food.
Water vapour inhailation & hot saline gargles would be beneficial.
take rest for few days . you will be alright.