Isopropyl works great on mosquito bites to stop the itch. Just remember to use a moisturizer afterwards to keep your skin from drying out.
@Tacitus_Kilgore Yellow mustard is also really good for bites and stings.
@misslovelymess I did not know that. Neato.
A bottle of isopropyl is cheaper than bite creams and not full of chemicals and scents.