What are the contraindications of moxibustion

Tianmoxibustion is contraindicated for keloid, diabetic, and skin injuries.
Tianmoxibustion, one of the moxibustion methods, through the application of drugs to the acupoints or the affected area of the skin stimulation, so that its natural congestion, redness or even foam and play a therapeutic effect. Because most of the drugs used from natural medicines, without burning moxa burning, and local skin reaction similar to moxibustion, so called moxibustion, also known as moxibustion, cold moxibustion, drug moxibustion, pus moxibustion, blister moxibustion, scar moxibustion and so on.
Moxibustion foam will appear moxibustion sores, but the moxibustion sores are mainly small blisters with rice-like, usually do not leave scars, but for patients with diabetes, for the repair of wounds is particularly poor, once there is a break, it is difficult to heal, and will be infected; for the keloid, scarring is difficult to eliminate, but it will be transformed into keloid, so it is not suitable for moxibustion.
The operation of moxibustion needs to be carried out by a professional doctor.