KILLER SORE THROAT !!!!!?

iv had a sore throat for 2 days and i have a cold. also i have a really heavy cough and when i cough my head hurts. i asked my science teacher (im 13 btw) what i could do and she said to buy a humidifier but my family aint got the money so we cnt but she told me that i could boil water on the stove then breath in the steam but it didnt help me much, does any1 no anythin i could do !!?? btw i dont like honey so dont say drink honey and water, and i have been drinkin alot of water, also my head feels kinda heavy and hurts 2 move it !!! sore throat, bad cough, head ache, cold, !!!