Life threatening hayfever - caused lung to collapse, what to do?

Control allergy Sx's: A spontaneous pneumothorax is most common in tall, lanky men in the their late teens who have a "bleb" or "blebs" on their lung tissue. Relating to severe allergy symptoms, the most reasonable scenario in my mind is that sneezing was performed with such intensity that the interthoracic pressures go up precipitously leading to a popped bleb after sneezing and another big drop in chest pressure .