diff --git a/handler/im.go b/handler/im.go
index 5938f8b..a16f941 100644
--- a/handler/im.go
+++ b/handler/im.go
@@ -61,10 +61,13 @@ func GetImKey(c *gin.Context) {
 				c.JSON(http.StatusOK, gin.H{"error": err2.Error(), "code": proto.OperationFailed, "message": "failed"})
 				return
 			}
-			if retrievedData["from_user_id"] == id1 {
+			if int(retrievedData["from_user_id"].(float64)) == id1 {
+				if int(retrievedData["is_read"].(float64)) == 1 {
+					worker.DelRedis(redis_key)
+				}
 				c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "data": retrievedData, "message": "success"})
 				return
-			} else {
+			} else if int(retrievedData["to_user_id"].(float64)) == id1 {
 				retrievedData["is_read"] = 1
 				str, _ := json.Marshal(retrievedData)
 				res3 := worker.SetRedisWithExpire(redis_key, string(str), time.Second*300)
@@ -77,6 +80,9 @@ func GetImKey(c *gin.Context) {
 				return
 				c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "data": retrievedData, "message": "success"})
 				return
+			} else {
+				c.JSON(http.StatusOK, gin.H{"error": "parameter error", "code": proto.ParameterError, "message": "failed"})
+				return
 			}
 		}
 
diff --git a/worker/redis.go b/worker/redis.go
index cb011e0..f4e72e9 100644
--- a/worker/redis.go
+++ b/worker/redis.go
@@ -176,6 +176,14 @@ func PopRedisListLeft(key string) string {
 	return val
 }
 
+func DelRedis(key string) {
+	ctx := context.Background()
+	err := redisClient.Del(ctx, key).Err()
+	if err != nil {
+		fmt.Println("Error deleting key: %v", err)
+	}
+}
+
 // push redis list from right
 func PushRedisList(key string, value string) bool {
 	ctx := context.Background()