I had an accident in my childhood. at the time of the accident, i got a cut under my nose. after that, it will recover. but in my adulthood hair is not growing in that cut portion. i am depressed about the matter. can you give me any solution?

No, what will be will be ! Good Luck

The injury you sustained was deep enough to have impacted the hair follicles so that they are absent. You could see a plastic surgeon, but the costs and pain may not bring the outcome you want. See a professional cosmetologist and either by designing a facial hair style that suits or a prosthesis that you can wear, are cheaper and more permanent options. Going clean shaven is also an option.