Since we’re spending more time indoors, it’s important to eliminate as many allergens inside as possible. These tasks around your home will also help eliminate pollen inside:Dust weekly. “Those are little critters that hide inside of our mattress and our pillows and our box spring,” Joshi said. In Northeast Florida, the most common allergens during the spring tree pollen months is oak. “Oak trees pollinate during the tree pollen season which is in the spring, so from right around now all the way through Mother’s Day, roughly,” Joshi said.