This condition of red bumps with blisters in babies depends on what the cause is. If it is a viral infection, it can be treated with symptomatic topical antiviral ointment such as acyclovir or ganciclovir ointment. If the blister is caused by a burn, you can apply a moist burn cream to promote healing. Try not to pick the blisters and keep the skin on the blisters to protect and promote recovery. If the blister has high tension, you can puncture and decompress it to relieve the pain. There are other causes of blisters such as mosquito bites that require anti-allergy medication. Different blisters are treated in different ways, depending on the cause, and it is important to avoid breaking the blister. Pus-filled blisters, because of the presence of pus inside, need to be cut and drained to release the pus can be.