<s>[INST] hi. I went to see a doctor about 4 days ago because I was on amoxicillin treatment due to tonsil infections and after I forgot to finish my dosage I went in for another one because the symptoms and signs were starting to show again. the doctor gave me an injection on my buttocks and now I feel numb around the hips and when I try to press the area I was injected I feel like some stringy thing around the numb area. what can be the cause of this numbness? [/INST] Hi. Welcome to Chat Doctor . I have gone through your query and can understand your concern. As per your complaint it seems that you have got a nerve injury with the pricking needle that is used in the injection and due to nerve injury there is numbness in the injection site along with the adjoining area supplied by the nerve leading to numbness. The stringy substance that you are feeling can be due to infection leading to pus formation. Mostly nerve injuries caused by needle prick are transient and the sensation almost completely recovers. As of now you can take vitamin B complex daily as it helps in nerve regeneration and healing. Do warm compresses over the numb area. If there is any stringy discharge you should consult a Physician and get evaluated so that he can give you oral and topical antibiotics for resolution of infection. Hope this information helps. Thanks and regards. Chat Doctor.  </s>