hi there, as your husband is diabetic he is very vulnerable to infection in any injury, what you have described looks like cellullitis of the foot which is a serious condition in a diabetic. He needs emergeny consultation and antibiotic cover. His blood sugar needs to be kept under controll. If there is a broken bone then it will show on the x-ray and that can be treated accordingly. At present the more acute condition is the spreading infection which is causing the swelling and redness and that needs to be taken care of first. Do not neglect and take immediate action. Take care.

Hello,
The first thing you need to do is to keep the foot a bit elevated on a pillow to reduce the swelling. If the redness is bright red it implies that there is dissipation of blood over the dorsum or upper part of the foot. This most likely results from fracture and the management is essentially conservative as the accumulated blood would be absorbed in due course of time. However, depending on his blood sugar levels, he might need a prophylactic antibiotic to ward off the chance of any serious infection. Also, hot compresses over the area and analgesics are needed. Alarming signs are if the swelling moves up the foot, if he develops fever and if there is alteration of sensation in the involved toe with it getting black. If these develop you should rush him to the ER.