For the most part, localized muscle aches and pains can be treated using home care strategies to reduce the inflammation and promote healing. In the early stages of muscle aches caused by injury remember to use PRICE: Protect, Rest, Ice, Compress, and Elevate.
Dog fouling applies to faeces, not urine. If dogs were repeatedly urinating on your garden causing a foul smell and you asked the person/s to stop allowing their dogs to do this, yet they persisted, it 'might' be classed as some sort of nuisance.
Old dogs, particularly bitches, often leave a damp patch after they have been lying down - why, and what should you do ? Leakage of urine (or urinary incontinence) is quite a common problem for older dogs - especially bitches. The signs are 1  : There is a damp patch on bedding, or on the floor, after the dog has been lying down for some time.  The hair around the external genital region becomes soiled with urine.