I wonder what are you doing there in a hotel, man you should have been in a hospital by now!
Unilateral swelling of lower limb with pain and oozing fluid means the problem is quite grave and
may cost you your leg if not managed quickly.
It may be a Deep Vein thrombosis
or a Lymphoedema or a Cellulitis- All of them pretty dangerous.
Please go to a clinic, get Lower Limb Doppler and blood investigation.
You must know that a shower of clot can be released from Leg DVT and may get lodged in lung arteries and kill a healthy looking person within minutes.
Consult nearest healthcare facility please.