My husband has been diagnosed with cellulitis in his right lower leg. We believe is was the result of a sandfly bite which became infected. He also bumped the leg quite severely with a block of wood (Did not break the skin) Doctor prescribed antibiotics last Friday (Keflex) three times a day. He has been on complete rest for the 3 days since then with his leg elevated and there does not appear to be much, if any, improvement. Are we expecting too much too soon and continue with the medication or should we revisit the doctor. If he stays with the leg up its bearable but as soon as he walks anywhere the pain increases.