Hello!
I have been through your question.
According your concern I think the diagnosis for the two cases is erysipelas. It is an infection of the upper and deeper dermis and superficial lymphatics, usually caused by
Streptococcus bacteria on scratches or otherwise infected areas. It appears as a red, swollen, warm, and
painful rash, similar in consistency to an orange peel. More severe infections can result in vesicles , blisters, and petechiae. The infection may occur on any part of the skin, including the face, arms, fingers, legs, and toes,but usually it tends to favour the extremities. You should know that people with
immune deficiency, diabetes,
alcoholism, fungal infections, and impaired lymphatic drainage,ulcers in the skin,surgical incisions are at increase risk to have erysipelas.
So, what I suggest in your case is a physical examination by an Infection Disease Specialist to find the proper reasons of this situation, to do a differential diagnosis with
cellulitis and in the same time you should start antibiotics (usually I prescribe
ampicillin or
amoxicillin, or penicillin if you aren't allergic) prescribe by your doctor. Furthermore, you should try to rest as much as possible with the leg elevated above your hip (you may support your leg on some cushions while lying down). It is also important to drink plenty of fluids and to get up and walk around from time to time and taking ibuprofen if you have pain.
I hope my answer help you.
I wish you a quick recovery.