<s>[INST] my friend snorted meth and the next day he had a sore throat the day after that he woke up and the little thing that hangs in the back of your throat was swollen realy bad and he went to the doctor and it was positive for strep could the meth  have caused this [/INST] Hello dear, Thank you for your contact to Chat Doctor. I read and understand your concern. I am Chat Doctor answering your concern. No, snorting meth never causes strep infection. The selling at the back of the throat is because of the irritation that has occurred by the meth snorting followed by secondary infection to the injured area. U advice you to take the antibiotic definite, antiacidity agent pantoprazole and paracetamol under your doctors' guidance. This regimen will cure your infection. Hexideine gargle can help clear the infection earlier your can also take it with your doctors' guidance. Please maintain good oral hygiene thus will equally help as antibiotics is doing. I will be happy to answer your further concern on bit.ly/ Chat Doctor.  You can hit than if you are helped. Thank you, ChatDoctorInfectious diseases specialist, ChatDoctor. </s>