It seems you have developed a cold virus infection.
Do the following
Take steam inhalation twice a day
Take some Tylenol or paracetamol
for body ache
Take some nasal decongestant drops like OTRIVIN for few days.
May take some anti allergic madicine like BENADRYL OR FENOXIFENADINE in the night for few days.
No need for any anti biotic at the moment.
If your fever increses or cough increases or the colour of sputum gets more dark in color,then a prescription of anti biotic like AMOXICILLIN
would be required by you from your doctor.