Scalp bumps are most likely caused by folliculitis on the scalp, which may be caused by a bacterial infection in the scalp follicles due to a decrease in the immune function of the body. Of course, most of the triggers for the decline in immune function are due to the patient staying up late, or not getting enough sleep, or overworking, or eating some spicy, stimulating food, such as hot pot, lobster, or seafood, or eating beef, lamb, meat, barbecue and so on. So at this time, if you want to appear to have bumps on the scalp, these foods try not to eat. As well as sweet foods should not be eaten, especially chocolate, coffee, strong tea, durian, pineapple honey, these foods are not allowed to eat.