Photorejuvenation is an advanced treatment method, which can achieve the effect of beauty and skin care, alleviate the problem of nose blackheads and solve facial defects. But it may not be completely removed. If blackheads are serious, they can be treated in other ways. Avoid sun exposure within one month after treatment, control the nutritional supplement of diet at ordinary times, try not to be partial or picky about food, and eat more fruits and vegetables rich in water.