Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. As per history you seem to be having upper respiratory tract infection. For sore throat treatment Take decongestant like Levocetrizine OD for five days. Avoid excess spicy foods Steam inhalation done three times a day with warm water Salt water gargle beneficial Kindly mention whether you have dry cough or wet cough so that I can guide you further Drink lots of water If pain is left side in cardiac region than I will recommend EKG investigation Take care Hope this will help you Good luck You can Consult nearby physician for examination