What types of allergies does Picnic treat? Michael August 25, 2022 21:40 Updated Picnic specializes in treating allergic rhinitis — often referred to as seasonal or perennial allergies. You can learn more about allergies here. Related articles What if my Picnic Home Allergy Test results show I have allergies Picnic doesn't treat? What does the Picnic Home Allergy Test test for? How does Picnic work? How does the Picnic Home Allergy Test work? Can I use my own pharmacy? Comments 0 comments Article is closed for comments.