If the bitten patient’s body has a strong immune system and the symptoms are mild, then it may heal on its own. However, if the bitten patient has more severe symptoms and the toxin is more widely distributed, it will not heal on its own and medical attention is required. If the tick is minimally toxic and the symptoms are mild, the skin may appear red or ecchymotic for a short period of time. If the bitten patient has a strong immune system and no other physical symptoms, it usually takes a week to heal itself. If the tick is highly venomous and the toxin is more widely distributed after the bite, resulting in more severe symptoms, it will not heal on its own. It may cause visible red, swollen spots and blisters on the skin, and if left untreated, the blisters may gradually turn into nodules and hardened knots. When the tick carries the virus, the tick bite may lead to paralysis of the skin, resulting in episodic muscle paralysis, and in severe cases, may even lead to respiratory failure and coma. Therefore, after being bitten by a tick, the patient should go to the hospital as soon as possible. Let the doctor use professional methods to remove the residual ticks on the skin. Never pull out the tick by yourself to avoid serious infection.