You will be asked about your symptoms and medical history. A physical exam will be done. Blisters may be diagnosed on appearance. The cause can be determined by the activity you were doing when the blisters appeared.
A blister will often heal without treatment. You may need treatment for a condition that is causing the blisters.
Some general tips for treatment include:
Protect the Area
Be gentle with the injured area. To prevent further injury, use a bandage made for blisters. Also, put a cushion around the blister to protect it. The blister should begin to shrink in about seven days.
Do not pop or lance the blister. Opening the blister increases the chance of infection and delays healing.
Do not scratch any blisters. If it is infectious, scratching may spread the infection. It also puts others at risk for getting the infection. Try over-the-counter medication that is applied to the skin to relieve any itching or discomfort. If you still have problems with the blisters, call your doctor.
Wash the Area
If the blister is closed, gently wash the area with soap and water. Apply a bandage to protect it.
If the blister is open, gently wash the area, apply an antibiotic ointment, and then cover it with a sterile dressing or bandage.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.