<s>[INST] Hello doctor i am abroad at the moment and actually in mauritius. I arrived 5 days ago and have been bitten all over by mosquitos, i now have this is lump underneath my chin, which hurts when i look up and when i touch this. I am not  sure what to do?? [/INST] Hi,From history it seems that there might be having some bacterial infection over the part on mosquito bite.Go for one antibiotic medicine course for 3 days.Ok and atke care. </s>