Help! Bright read foot and headache for 2 days

[ChopperChick]

His ankle on that foot has had a recurring bed sore but as of the past 6 months, its just a litle dry scab. I was thinking headache was ad due to possible bladder infection. He has had a flu shot. So ;

Bad headache
Cherry red foot
Body aches
Low fever

T6 incomolete

Update: his foot is hot to the touch. Now I am thinking celluitis. He had it before before his injury so I remember the symptoms but I don' remember headache

[Donno]

Sounds exactly like what happens to my foot when I get cellulitis. If you don't have any Keflex on hand, I'd go to ER.