<s>[INST] i have welts on my neck, this is the second time that i have such.the first times was on the middle part of the neck and now on the left side. as a kid my mom told me that i cant grow my hair long because i tend to get allergies on my neck. i am also allergy with almost all antibiotics and some food [/INST] Hi and thanks for the query,It is important to note that allergies are not treated with antibiotics. The first step is making a proper diagnosis that this is an allergy itself. Secondly, a proper case history would identify either drugs, insects, dress, material, food or some substance in the environment that could be responsible for these allergies. Since this has been going on for a very long time, the opinion of an allergist could be most helpful. Kind regards </s>