Blisters are caused by fluid leaving damaged blood vessels, generally after a pinch, friction or excess heat. This fluid contains many of the nutrients that help the repair process and should be allowed to stay in the area. If the blister becomes too full it can start to cause pressure on the stretch-sensitive nerves and produce pain. This is the only indication to burst a blister and it should be done under medical supervision only.
Do not burst a blister.
Applying gentle pressure to the blister may take away some of the discomfort.
Apply Arnica creams or lotions. If the blister is on the fingers or toes, use Hypericum creams or lotions.
Review the homeopathic remedies Cantharis and Rhus toxicodendron for small blisters.
Recurrent blisters or blisters that occur after no apparent injury may represent an underlying condition that requires medical diagnosis and this should be assessed by your GP.