<s>[INST] Hi  Im a 51 year old women with no real heal issueslately Ive been having itchy red streaks that just appear one or two at a time. there on my arm or shoulder or anywhere. I spray with a anti-itch spay and it goes away only to return on another area. I have not changed any of my skin products and have not been in contact with anything odd. What might be causes this to happen? [/INST] Hello, Thank you for posting on Chat Doctor. The condition you have referred to is called Urticaria or hives. It's an allergic manifestation of skin, where an allergen leads to release of certain substances from your blood, leading to itchy skin rash and swelling over soft tissues. Its proper management requires thorough history, clinical and laboratory work-up. You may have to go for specific tests like patch test, food prick test, IGE antibody levels etc. As for treatment part, best would be the avoidance of allergen as far as possible. Try to eliminate possible triggering foods from diet. I would also advise you various antihistamines for long duration(at least 3 months) with or without oral corticosteroids. For non-responding cases there are many other Chat Doctor.  Hope this will help you in resolving your query. Thank you  </s>