Digging garlic hand swelling numb, consider and garlic juice irritation, allergy related. You can use water to rinse your hands, if necessary, with topical ointment application, oral medication. 1. Stimulation of garlic juice: After digging garlic, the hand is swollen and numb, which may be caused by the stimulation of garlic juice on the hand. It is recommended to get out of the environment, stop digging garlic, put your hands under the faucet, and use water to rinse your hands repeatedly, which can reduce the residue of garlic juice and help relieve the symptoms. 2. Allergy: Allergy to the ingredients inside the garlic can cause an allergic reaction, resulting in redness and swelling of the hands, flaky erythema, numbness. It is recommended that under the guidance of a doctor to give hydrocortisone butyrate ointment topical application, if necessary, with oral compound glycyrrhizin capsules, levocetirizine hydrochloride capsules and other drugs and other drugs. Swelling and numbness of the hand after digging garlic, if the symptoms are more obvious, it is recommended to go to the general surgery department of the hospital, under the guidance of the doctor to use medication.