Meat is swollen and hard after being bitten because of localized metamorphosis and hypersensitivity reaction after being bitten. Meat is swollen and hard after being bitten because after being bitten, it is equivalent to the local metamorphic reaction of the body, and the local tissues will form a parcel, leading to the occurrence of exudate, thus forming a swollen and hard mass, and the local skin shows redness, swelling, and pain. If you are bitten by a bug, it is because the toxin of the bug stimulates the skin and causes the body to overreact, thus a hypersensitivity reaction occurs, resulting in localized swelling and hardness of the skin after being bitten. You can use Bactroban ointment, dermatophyte ointment and so on to carry on the treatment, pay attention to don’t eat spicy and stimulating food, don’t use hand to scratch. If the flesh is swollen and hard after being bitten, it is recommended to consult the dermatology department of the regular hospital.