Oxalic acid on the skin may cause redness and swelling. Cleaning is recommended and medication is given if necessary.
Oxalic acid is an acid, a colorless columnar crystal, a metabolic product of living organisms. Oxalic acid is a weak acid that is not corrosive in small amounts in contact with the skin, but try to minimize contact.
If oxalic acid accidentally gets on the skin, you can use a lot of water to rinse off the residue of oxalic acid, and it usually does not affect your health. However, everyone has a different physical constitution, and if oxalic acid contact with the skin causes an obvious allergic reaction, the administration of loratadine, levocetirizine hydrochloride, etc., if necessary, can help alleviate the allergic symptoms.
To summarize, oxalic acid in contact with the skin, usually does not cause obvious discomfort, as long as the use of water for rinsing can be. If an allergic reaction occurs, go to a hospital dermatologist if necessary.