The main request is to improve self-confidence, overcome nervousness and anxiety, and to make self-psychological adjustments, and if possible, psychotherapy, and in serious cases, medication. Self-psychological adjustment must analyze why there will be nervous and afraid to see people, may be a past setback or the occurrence of unhappy, embarrassing things, so that they have a psychological shadow, or particularly low self-esteem, easy to shy, introverted personality, the above reasons need to be targeted to solve, the most critical is to improve self-confidence, the courage to express, and brave to increase the experience of interpersonal interaction, only then Only then will not be nervous and afraid. With self-growth and maturity, you can effectively overcome the problem of nervousness and fear in the face of acquaintances and even in public. If there are conditions for psychotherapy, the most effective is cognitive-behavioral therapy, which is mainly to change distorted beliefs or automatic thinking, one will easily fall into a strange circle, thinking that being nervous and blushing when speaking in public is a scandalous and disastrous thing, one will be afraid and the behavioral aspect will be greatly affected. Cognitive-behavioral therapy is very good for improving self-confidence and security as well as improving poor cognition, and you can find the right psychotherapist for you to do psychotherapy systematically. Medication is mainly in more serious cases, even with anxiety, nervousness, panic, hand trembling or fainting, and fear of dying, you can consider using benzodiazepines, commonly used are lorazepam, etc.