May I come back to my previous company?

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I work on a samll company of auto industry before.I very like the job and My boss was very kind of me but the salary was very little and had no insurance. So i leave off that company and entered another company. After a short time I find i dislike the job.So my feeling is very sad and i want to go back the previous company. Do you think i should go back? I will appreciate any response.