I have been experiencing periodic hives for a few days. They are not severe and go away quickly, especially with Benadryl. Today I woke up with severe pain in my chest behind my breastbone and my lips are severely swollen. I have no history of allergies and have no changed anything in my lifestyle or environment.
Thanks for your question on Chat Doctor. I can understand your concern. Hives, swelling of lips improving with Ben Chat Doctor.  So better to consult pulmonologist and get done 1. Clinical examination of respiratory system 2. PUT (pulmonary function test). PFT will not only diagnose asthma, but it will also tell you about severity of the disease. And treatment is based on severity only. You may need inhaled bronchodilator and inhaled corticosteroids (ICS). Combination of antihistamine (levocetrizine or fexofenadine) and anti-allergic (montelukast) is also beneficial in your case. Don't worry, you will be alright. First diagnose yourself and then start appropriate treatment. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.