Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain sore throat along with sneezing and getting hot or cold can be due to either viral infection or allergies.. I would suggest you to consult an Otolaryngologist and get evaluated and a thorough clinical evaluation and investigations like throat swab culture, allergic tests, blood test to rule out infections, Immunoglobulin G levels etc can help in diagnosis and treatment can be done accordingly.. You can be advised to take anti inflammatory painkiller like Ibuprofen, anti allergics like Levoctrizine, do warm saline gargles, steam inhalation and use a humidifier in your room.. You can also use decongestant nasal sprays.. Take a soft diet and avoid spicy and hard food.. Take appropriate rest. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.