What do আপনি do to feel better when আপনি have a bad cold অথবা flu.

Ok So a few days পূর্বে my cold started coming after sleeping over my বন্ধু house her cousin had a cold and she wanted to sleep in the same room with us.She's 6 years old and i think i caught it from her because she slept on the floor with us and she was coughing on me the whole time and my friend told me not to worry because she's almost better.It didn't look like it she even vomit on me a bit and i wanted to go প্রথমপাতা and ঝরনা but my friend ব্যক্ত if i left she ব্যক্ত that she was a afraid i wouldn't see her for a long time and i have a হৃদয় for people.So i changed my clothes and stayed there because i felt bad.I Think i have the flu now because i have been feeling weak and i had a huge headache i even fainted.Please tell me if আপনি think its the flu অথবা just a cold.If আপনি guys are sick i hope আপনি feel better soon.