What types of allergies does Picnic treat? Sophie March 01, 2021 21:34 Updated Picnic specializes in treating allergic rhinitis — often referred to as seasonal or perennial allergies. You can learn more about allergies here. Related articles How does Picnic work? What is Picnic? Are Picnic doctors licensed? How much do Picnic treatments cost? Am I eligible to use Picnic? Comments 0 comments Article is closed for comments.