<s>[INST] I have bumps behind my ears, hair line and middle of my chest. I have visited several hotels over the last week and the last place was a cabin that had a hot tub that we used. The other visitors, as well as myself, have several bug bites that MAY be bed bug bites. My jaw was sore but I chalked that up to excessive gum chewing. I also had a sore throat but I had had that before the week long vacation and it just seemed to linger and get a little worse for a while. Was it bed bugs or the jacuzzi? [/INST] Hi. Thanks for your query. Noted your history of bumps behind the ears, hair line, chest and had jacuzzi and change of multiple hotels. It is obviously due to either of it as the causative agents were present. Bed bugs usually cause bites more on the extremities and trunk. If jacuzzi had caused such a problem, the things would have been all over the body. Hence, the possibility of it having die to some skin allergy of non-specific cause can be the reason. Consult a Dermatologist and see the causes and get treated if the problem does not resolve in a few days on its own. </s>