First of all, we need to make it clear that although the human body has a certain ability to heal itself, this ability is limited. When we rely on electronic devices such as mobile phones and computers for a long time, it can have negative effects on the body, such as eye strain, cervical spine pain, etc. If we can properly put down these devices and give the body some time to rest and recover, it is indeed possible for some mild illness or discomfort to heal on its own. 
Here are some of the diseases or symptoms that may heal on their own:1Eye strain: Staring at a phone or computer screen for a long time can lead to eye strain, with symptoms such as dryness, itching, and blurred vision. Proper rest and staying away from electronic devices can relax and restore the eyes, and the symptoms of eye fatigue may gradually disappear. 2.Cervical spine pain: Using a mobile phone or computer with your head down for a long time can cause the cervical spine to be bent for a long time, causing cervical spine pain. Proper rest and exercise can relieve cervical spine pain, such as stretching, yoga, etc. 3.Wrist pain: Prolonged use of a computer keyboard or mouse can cause wrist fatigue and pain. Wrist pain can be relieved with proper rest and treatment such as massage and warm compresses on the wrist. 4.Anxiety and depression: Excessive use of electronic devices may affect a person's mental health, leading to problems such as anxiety and depression. Putting down electronic devices appropriately and increasing physical and mental health activities such as outdoor activities and social interactions can help reduce anxiety and depression. 
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It is important to note that for some serious diseases or symptoms, it is not possible to heal themselves by resting and relaxing alone. If you have symptoms of discomfort, you should seek medical attention in time and accept professional ** and doctor's advice.