A 1cm scald blister can generally subside in a few days, depending on the treatment method after the scald, personal constitution, etc., and needs to be analyzed on a case-by-case basis. If a 1cm blister is formed after a burn, it will usually absorb on its own in about 3-5 days if the local care is proper, the blister does not rupture, no infection occurs, and the patient has a good constitution and strong recovery ability. However, if the patient’s immunity is low and inflammatory reactions such as infection and purulence occur at the blister, it is recommended to go to the burn department of a regular hospital in a timely manner and have the blister treated by a professional physician under sterile conditions, with a variable recovery time, which may be 1 week or longer. If a smaller blister is formed after a burn, it is generally not recommended to pick it up by yourself because the blister skin is a good protection, and if it is picked up and torn off directly, it may form an obvious trauma, and if it is not handled properly, there is a risk of secondary infection, which is not conducive to recovery. After a burn, you need to keep the area clean and dry to prevent the occurrence of infection, and if necessary, you can use anti-inflammatory drugs such as erythromycin ointment as prescribed by your doctor.