Figure 1.

(A) Changes in sneezing number in the normal, model, and different mesenchymal stromal cell (MSC) treatment groups of rats. (B) Changes in nose scratching number in the normal, model, and different MSC treatment groups of rats. *P < .05, **P < .01, and ***P < .001 compared with the model group (normal: untreated wild‐type rats; model: ovalbumin (OVA)‐induced acute allergic rhinitis rat model; (A) rats treated with MCSs once a week before allergic rhinitis (AR) rat model construction; (B) rats treated with MCSs once a day after AR rat model construction; (C) rats treated with MCSs weekly for 4 consecutive weeks after AR rat model construction)