Hi
Urticaria is of two types : acute and chronic based on duration less than or more than 6 weeks. Multiple trigger factors are there like food, drugs, infection, heat, sweating ,cold , pressure, autoimmune etc. Detail history and laboratory tests are needed to identify the cause. However in few patients no cause can be identified.
Next Steps
consult a dermatologist for treatment advice.
Health Tips
avoid things that trigger your symptoms.