Hi, the warm spots are usually seen in infection like Cellulitis but seems to be unlikely in your case. As in this condition there is marked sore swelling and skin is warm to touch. The other possibilities are deep vein thrombosis (DVT), superficial thrombophlebitis, venous valvular insufficiency and Lymphedema. Even there can be possibility of cholinergic urticaria.
To rule out DVT contrast venography, compression ultrasonography or D-dimer testing can be used. Anti-coagulants are used in case of DVT. Cellulitis should be immediately managed by appropriate antibiotic. I suggest you to consult surgeon for further evaluation and treatment options. Take care and regards.
Hi and welcome to the forum.
Raynaud's disease ( I'm pretty sure that's what you meant) is a ciculation disorder.
There's a possibility it is connected to the "hot spot" on your leg.
Please post in the Alternative Therapies Community for some holistic suggestions that may be helpful.
Blessings
Nikodicreta