Should you put a band-Aid on a blister?

Yes, you should put a band-aid on a blister to protect it from further friction and infection. The band-aid can help keep the blister clean and provide cushioning. However, ensure the blister is clean and dry before applying the band-aid, and consider using a blister-specific bandage for added protection. If the blister is large or painful, it may be advisable to consult a healthcare professional.